Question

(-2)3 *(-2)-6 = (-2)2x - 1
value for x

Answer 1

From the laws of exponents , we know that, am × an = a(m+n) So , we have , (–2)3 × (–2)–6  =(-2)(3)+(-6)  = (-2)(-3) Now , we have , (-2)(-3) = (-2)(2x-1) On comparing both the sides , we get -3 = 2x-1 2x = -3 + 1 2x = -2 x = -2/2 = -1 ∴ x = -1