Factories the expression and divide
1- 3(7x2+105x) / 21(x+5)
2- 4ab(a2-6a-16) / 26(a-8)

Dear Student,
Please find below the solution to the asked query :

1.   37x2+105x21x+15=3 × 7xx + 15 21x+15=21xx+1521x+15=x2.  4aba2-6a-1626a-8=4aba2-8a+2a-1626a-8=4abaa-8+2a-826a-8=4aba-8a+226a-8=2aba+213

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