Question

Find the value of q^2, when q= -10

Answer 1

If q = -10

Then:
q^2 = qxq
q^2 = (-10)(-10)

q^2 = 100

Answer 2

Use the substitution method

q^2

(-10)^2

-10*-10

= 100 ( whenever multiplying - negative number and - negative number= + positive number

Answer: 100