Question

1. Use a suitable identity to determine each of the following products
i. (2x + 5y) (2x + 5y)
ii.​

Answer 1

Answer:

18-Jul-2020 — Answer:Using the identity (a+ b)(a+c)= ... a suitable identity to get each of the following products. (2x+5y)(2x+3y). 1 ... Find more answers ... given f(x)= 9-x^2, g(x)= 3-x.

Answer 2

Answer:

$(2x + 5y)(2x + 5y) \\ \\ = {(2x + 5y)}^{2} \\ \\ = {(2x)}^{2} + 2 \times 2x \times 5y + {(5y)}^{2} \\ \\ = 4 {x}^{2} + 20xy + 25 {y}^{2} \\ \\ formula \: used \\ \\ (a + b) ^{2} \\ \\ = {a}^{2} + 2ab + {b}^{2}$

# keep smiling ☺