Question

30to the second power + 18 to the second power equals ?

Answer 1

1224

Answer 2

\[30^2 = 30 \cdot 30 = 900\]\[18^2 = 18 \cdot 18 \]\[= (10 + 8)(10+8) \]\[= 100 + 2(80) + 64 = 100 + 160 + 64 = 324\]
\[\implies 30^2 + 18^2 = 900 + 324 = 1224\]

Didn't want to bother getting out the calculator, sorry

Answer 3

thats a lot of variables ...