Question

The value of x minus 2 whole power 3 into minus 2 whole power minus 6 is equal to minus 2 whole power 2 x minus 1

Answer 1

First of all we use identity , so identity is

(a)^3+(b)^3+3a^2b+3ab ^2.

solution...

Q.) (x+2)^3-(2)^-6 = (-2)×(-1).

Sol.) (x)^2 +(2)^3+3(x)^2(2)+3(x)(2)^2=[-2]^2×[-1].

x^2+8+6^2+12x-2×-2×-2×-2×-2×-2=(-4×-4)×[-1].

x^2+8+6x^2+12x+64= -4.

x^2+6x^2+12x=-4-8-64.

5x^2+12x=-4-8-64.

5x^2+12x=-76

5x^2+12x+76=0

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