Subtract 4ab(a + b) from 7b(a - b). - Vidyadip

MCQ

Subtract $4ab(a + b)$ from $7b(a - b).$

A
$7ab - 4a^2 b - 11ab2$
✓
$7ab - 4a^2b - 4ab^2 - 7b^2$
C
Cannot be determined
D
None of these.

✓

Answer

Correct option: B.

$7ab - 4a^2b - 4ab^2 - 7b^2$

B. $7ab - 4a^2b - 4ab^2 - 7b^2$
Solution:
$4ab(a + b) = 4a^2b + 4ab^2$ and $7b(a - b) = 7ab - 7b^2$

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