Question

Use suitable identity to find each of the following products: (3x-7) (3x-7)​

Answer 1

Answer:

$9 {x}^{2} + 49 {y}^{2} - 42x$

Step-by-step explanation:

$(3x - 7)(3x - 7)$

${(3x - 7)}^{2}$

WKT

$(x - y) {}^{2} = {x}^{2} + {y}^{2} + 2xy$

$= > {(3x - 7)}^{2} = 9 {x}^{2} + 49 {y}^{2} - 42x$

Hope it helps

Answer 2

Answer:

PLEASE MARK ME BAINILIST

= (3x-7) (3x-7)

= (3x-7)^2

=(3x)^2 - 2×3x×7 + (7)^2

= 9x^2 - 42x + 14