Question

Pls help.

Answer 1

Answer:

a)

${ (15x)}^{2}$

$15 \times x \times 15 \times x$

$225 {x}^{2}$

b)

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

$(x - 2) \times (x - 2)$

${x}^{2} - 2x - 2x + 4$

${x}^{2} - 4x + 4$