Question

3a×a×b×b -4ab+5 +8a×a×b×b+12ab-9+15-6ab-5a×a×b×b

Answer 1

$3a^{2}b^{2} - 4ab + 5 + 8a^{2}b^{2}+12ab-9+15-6ab-5a^{2}b^{2}$

/Rearranging the like terms ,we get */

$= (3a^{2}b^{2} + 8a^{2}b^{2} - 5a^{2}b^{2} )+(-4ab+12ab-6ab) +5-9+15\\= (3+8-5)a^{2}b^{2} +(-4+12-6)ab+5+6\\= 6a^{2}b^{2}+2ab+11$

Therefore.,

$\red{3a^{2}b^{2} - 4ab + 5 + 8a^{2}b^{2}+12ab-9+15-6ab-5a^{2}b^{2}}$

$\green {= 6a^{2}b^{2}+2ab+11 }$

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