If a-b = -8, ab = -12, then find a3-b3
Answers
Answered by
5
Answer:
-224.hope this helps u
Step-by-step explanation:
a3 - b3 = (a – b)3 + 3ab (a- b)
= ( -8 )3 + 3 (-12) (-8)
= -512 + 288
= -224
bhainapranitsp3610:
no problem
Answered by
2
a = (-6)
b = 2
AQ,
a - b = (-8)
(-6) - 2 = (-8)
ab = (-12)
(-6) x 2 = (-12)
So,
a3 - b3 = ((-6) x 3) - (2 x 3)
= (-18) - 6
= (-24)
Therefore, a3 - b3 = (-24)
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