Question

(5x – 2) (5x + 7) solve using identities

Answer 1

Answer:

(5x-2) (5x+7) = (5x)^2   + (-2+7)5x + (-2*7)          

                    = 25x^2 - 25x - 14

Step-by-step explanation:

identity- (x+a) (x+b) = x^2 + (a+b)x + (a*b)

Answer 2

$(5x \: - 2)(5x \: - 7) \\ = > 5 {x}^{2} \: - 35x \: - 10x \: + 14 \\ = > 25 {x}^{2} \: - 45x + 14$