Question

1. Rewrite the expression. Use an exponent, rather than repeated multiplication. (–4)(–4)

Answer 1

You can rewrite the multiplication using properties of the exponents.
 We have that if the base is the same, the exponents are added.
 For this case, we have:
 Base = (- 4)
 Exponent = 1
 Applying properties of exponents:
 (-4) (- 4) = ((- 4) ^ 1) ((- 4) ^ 1) = (- 4) ^ (1 + 1) = (- 4) ^ 2
 answer:
 the expression is the same as (-4) ^ 2