Question

solve it
please do it​

Answer 1

Answer:

Find the value of n,

2^n+5×2²-2⁹=0

or, n+5×2-9=0

or, n+1=0

or, n=1

Now the next one,

(i)9×(2)²-10(-2)³

or, 9×4+80= 36+80=156

(ii) 2(2)²-(-2)²= 8-4=4