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Simplify(2x+7) (5x+9)-(4x^2+1)(x-3)Answer-4x^3+22x^2+52x+66Plz tell with step by step explanation ​

Answer»

(2X+7)(5x+9)-(4x²+1)(x-3)

2x(5x+9)+7(5x+9)-[4x²(x-3)+1(x-3)]

10x²+18x+35x+63-[4x³-12x²+x-3]

10x²+18x+35x+63-4x³+12x²-x+3

-4x³+10x²+12x²+18x+35x-x+63+3

-4x³+22x²+52x+66



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