Question

Simplify. Help:(
-7i•(-8i)

Answer 1

I got - 56, I could be wrong though

Answer 2

-56

Step-by-step explanation: multiply -7i (-8i)

Multiply -8 by -7 56ii

raise i to the power of 1

56(1 ii)

Use the power rule aman m+n to combine exponents

56i 1+1

Add 1and 1 2

56i^2

rewrite i^2 as -1

56;-1

multiply 56 by -1

-56