Answer:
FORMULAS
a (b + c) = ab + ac
(a + b)2 = a2 + 2ab + b2
(a − b)2 = a2 − 2ab + b2
(a + b)(a − b) = a2 − b2
Making Groups ( factorize four terms)
2x² - 2x + 5x - 5
= 2x (x - 1) + 5(x - 1)
= (x - 1) (2 x + 5)
Evaluation of algebraic expressions
The process of replacing the variables in an expression with the numerical values and simplifying it is known as evaluating an algebraic expression. Following order of operation is used to evaluate an algebraic expression;
1. Perform the operations inside a parenthesis first
2. Then exponents
3. Then multiplication and division, from left to right
4. Then addition and subtraction, from left to right
Hope this will help you if you need more help about algebra free to ask i will try !
because algebra is big enough
