what is the answer for 4(a+b)²-9(a-b)²
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Answered by
7
4(a+b)sq-9(a-b)sq
=4 a sq + 4 b sq + 8ab-9(asq + bsq -2ab)
= 4a sq +4 bsq +8ab -9 asq -9bsq + 18ab
= -5asq -5 b sq + 26ab Ans
=4 a sq + 4 b sq + 8ab-9(asq + bsq -2ab)
= 4a sq +4 bsq +8ab -9 asq -9bsq + 18ab
= -5asq -5 b sq + 26ab Ans
Answered by
5
4a2+4b2-9a2-9b2
4a2-9a2=-5a2
4b2-9b2=-5b2
4a2-9a2=-5a2
4b2-9b2=-5b2
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