Question

Simplify it→→→\→→→→}→(2x+7)(5x+9)-(4x²+1)(x-3)​

Answer 1

Given :  (2x + 7) (5x + 9) - (4x² + 1) (x – 3)

To Find : Simplify

Solution:

(2x + 7) (5x + 9) - (4x² + 1) (x – 3)

Apply distributive property

= 2x(5x + 9) + 7(5x + 9)   - 4x²(x - 3)  - 1(x - 3)

= 10x² + 18x + 35x + 63 - 4x³  + 12x²  - x  + 3

=  -4x³  + 10x²  + 12x²  + 53x - x + 63 + 3

= -4x³ + 22x² + 52x + 66

(2x + 7) (5x + 9) - (4x² + 1) (x – 3)  = -4x³ + 22x² + 52x + 66

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