How did i get this exponent answer? ?

Question

So this is the problem.

(-2)^3+1

i know the answer is -7, but i don't know how to get that.

Do i add the 3+1 then do the exponent? or do i apply each to the base? Help me figure out how this is solved.

Answer 1

you have -2³ + 1

You do not add 3 + 1. The operations order rules say that you first compute the power of (-2³), then you add 1. Exponential operation has a greater priority than the sum.

So first you do -2³ = -(2³) = - (2 x 2 x 2) = -8,

then you add 1: -8 + 1 = -7

Answer 2

(-2)^3 + 1

= (-2)(-2)(-2) + 1

= (4)(-2) + 1

= -8 + 1

= -7

Answer 3

-2^3+1 try adding brackets

(-2^3)+1   =-8+1=-7

Answer 4

you can do this like

(-2)^3 + 1

= (-2)*(-2)*(-2)   +   1

= -8+1

= -7

Answer 5

(-2)^3+1

=(-2)(-2)(-2)+1

=(4)(-2)+1

= -8+1

= -7