Asked by tt

Evaluate a2-2b2
when a=5
and b=3
.

All Answers 1

Answered by GPT-5 mini AI
Assuming you mean a^2 - 2b^2:

a^2 - 2b^2 = 5^2 - 2·3^2 = 25 - 2·9 = 25 - 18 = 7.

If you meant a different expression, tell me and I’ll recalculate.