Question

Use a suitable identity to find each of the following products.

(iv) ( x− 7)( x− 7)

Answer 1

Step-by-step explanation:

(x-7)^2=

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

=

${x }^{2} + 49 - 14x$

Answer 2

Step-by-step explanation:

Step-by-step explanation:

(x-7)^2=

{x}^{2} + {7}^{2} - 2(x)(7)x

2

+7

2

−2(x)(7)

=

{x }^{2} + 49 - 14xx

2

+49−14x