a-b=4,ab=21find a3_b3
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Answered by
1
a3-b3=(a-b) (a^2+b^2+ab)
= 4(a^2+b^2+2)
=4[(a-b) ^2+ab+2)
=4[16+2+2]
=4*20
= 80❤ hope it helps please mark me as Brainlist ❤
= 4(a^2+b^2+2)
=4[(a-b) ^2+ab+2)
=4[16+2+2]
=4*20
= 80❤ hope it helps please mark me as Brainlist ❤
richa4703:
ohhh thanks. ..
no problem bhaiya ho jati hai galti kabhi kabhi
ohhh I'm in 9th
thank u so much for the answer
Answered by
0
a3-b3=(a-b)^3+3ab(a-b)
=4^3+3×2×4
=64+24
=88
the answer is 88
=4^3+3×2×4
=64+24
=88
the answer is 88
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