Question

Simplify: ( 16 x 2 n+
$(16 \times 2 {}^{n + 1} - 4 \times 2 {}^{n} ) \div (16 \times 2 {}^{n + 2} - 2 \times 2 {}^{n + 2}$
please help​

Answer 1

Step-by-step explanation:

Correct answer

21

16×2n+2−2×2n+216×2n+1−4×2n

=16×22×2n−2×22×2n16×2×2n−4×22n     (asam+n=am−an)

=2n(16×22−2×22)2n(16×2−4)

=16×4−2×432−4=5628=21