Question

Using Identity
what's the answer to :
(a) (nq-8)(nq-8)
(b) (st+6)(st+6)

Answer 1

Answer:

a)

${n}^{2} q^{2} + 64 - 16nq$

b)

${s}^{2} {t}^{2} + 36 + 12st$

Step-by-step explanation:

a)

$(nq - 8)(nq - 8) \\ = )(nq - 8) ^{2} \\ = )(a - b) ^{2} = {a}^{2} + {b}^{2} - 2ab \\ = ) {(nq)}^{2} + {(8)}^{2} + (2 \times nq \times 8) \\ = ) {n}^{2} {q}^{2} + 64 </strong><strong>-</strong><strong> 16nq$

b)

$(st + 6)(st + 6) \\ = )(st + 6) ^{2} \\ = )(a + b) = {a}^{2} + {b}^{2} + 2ab \\ = ) {(st)}^{2} + {(6)}^{2} + (2 \times st \times 6) \\ = ) {s}^{2} {t}^{2} + 36 + 12st$

HOPE IT HELPED