what is 2a in algebra?
11190
Exactly that 2a means 2 of the quantity “a”. “ a” could be any number. We do this type of questions in lots of different places for instance; When we are buying the groceries, if we needed to check if we had enough money to buy 2 bottles of milk.
2586
2 Answers By Expert Tutors Is the second expression x2 or x2? Because multiplication is commutative, x2 and 2x would be the same thing.
1248071
['a2 – b2 = (a – b)(a + b)', '(a+b)2 = a2 + 2ab + b2', 'a2 + b2 = (a + b)2 – 2ab.', '(a – b)2 = a2 – 2ab + b2', '(a + b + c)2 = a2 + b2 + c2 + 2ab + 2bc + 2ca.', '(a – b – c)2 = a2 + b2 + c2 – 2ab + 2bc – 2ca.', '(a + b)3 = a3 + 3a2b + 3ab2 + b3 ; (a + b)3 = a3 + b3 + 3ab(a + b)']
1182659
Algebra 2. Algebra 2 is the third math course in high school and will guide you through among other things linear equations, inequalities, graphs, matrices, polynomials and radical expressions, quadratic equations, functions, exponential and logarithmic expressions, sequences and series, probability and trigonometry.
576726
A polynomial equation with two terms usually joined by a plus or minus sign is called a binomial. Binomials are used in algebra. Polynomials with one term will be called a monomial and could look like 7x. A polynomial with two terms is called a binomial; it could look like 3x + 9.
280576
An expression consists of a combination of numbers, operation symbols, and grouping symbols such as parentheses ( ). An algebraic expression is an expression that contains one or more variables.
556166
How to proof the formula of sin 2A is equals 2 sin A cos A? Note: In the above formula we should note that the angle on the R.H.S. is half of the angle on L.H.S. Therefore, sin 60° = 2 sin 30° cos 30°. The above formula is also known as double angle formulae for sin 2A.
1424032
Algebraic Identities. An algebraic identity is an equality that holds for any values of its variables. For example, the identity ( x + y ) 2 = x 2 + 2 x y + y 2 (x+y)^2 = x^2 + 2xy + y^2 (x+y)2=x2+2xy+y2 holds for all values of x and y.
169885
To factorise this quadratic, find two numbers that have a product of -4 and a sum of 0. Therefore, the two numbers to go into the brackets are -2 and 2. To check this answer, expand the brackets to see if the answer gives the original expression. If it does, then this is a correct factorisation.
143014
2A=h(b1+b2). Divide both sides of the equation by the sum of the bases to get 2A/(b1+b2)=h. This equation gives the representation of h in terms of the other traits of the trapezoid. Plug in the values of the trapezoid into the equation for height.
1412268
We have been given that α and β are the zeroes of polynomial x² + px + q. Therefore, Required Value of (α /ß + 2)(ß/α + 2) is 2p² + q.
720525
An algebraic expression that is a polynomial of degree 2 is an expression in which the highest exponent for the independent variable, x, is 2. e.g. x^2+2x+1 is a polynomial with a degree of 2.
184308
An algebraic expression is an expression involving numbers, parentheses, operation signs and pronumerals that becomes a number when numbers are substituted for the pronumerals. For example 2x + 5 is an expression but +) × is not. ... In algebra, pronumerals are used to stand for numbers.
1220136
Therefore, the answer to what divided by 8 equals 2 is 16.
952785
It is just another simple multiplication. Just keep the 2 along with √3 . So that becomes, ⇒2×√3=2√3 .
1243695
So two odd numbers can be represented by 2a +1 and 2b +1, the product would be: (2a + 1)(2b +1) = 4ab + 2a + 2b + 1 = which can be written as 2(2ab + a +b) + 1, but 2ab +a + b represents some integer, so 2ab + a + b = x. So (2a + 1)(2b + 1) = 2(2ab + a + b ) + 1 = 2x +1 which is odd.
196366
Average of two numbers is given by the sum of the two numbers divided by two. The average of two numbers is given by x = (a + b)/2 where x is the average a and b are any two numbers.