Question

Find the product of (x+2y) and (x+5y) using suitable identity.

Answer 1

Step-by-step explanation:

$(x + 2y)(x + 5y)$

$identity \: (x + a)(x + b) = {x}^{2} + (a + b)x + ab$

${x}^{2} + (2y + 5y)x + 2y \times 5y$

${x}^{2} + 7yx + 10 {y}^{2}$