What is expand (7x^2+9x+7)(9x-4) ?

The solution to expand (7x^2+9x+7)(9x-4) is 63x^3+53x^2+27x-28

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expand (7x^2+9x+7)(9x-4)

expand

(7 x^{2} + 9 x + 7) (9 x - 4)

63 x^{3} + 53 x^{2} + 27 x - 28

Solution steps

(7 x^{2} + 9 x + 7) (9 x - 4)

Distribute parentheses

= 7 x^{2} \cdot 9 x + 7 x^{2} (- 4) + 9 x \cdot 9 x + 9 x (- 4) + 7 \cdot 9 x + 7 (- 4)

Simplify

7 x^{2} \cdot 9 x + 7 x^{2} (- 4) + 9 x \cdot 9 x + 9 x (- 4) + 7 \cdot 9 x + 7 (- 4) : 63 x^{3} + 53 x^{2} + 27 x - 28

= 63 x^{3} + 53 x^{2} + 27 x - 28

\frac{210}{360}

(w c^{7}) (- 8 w^{3} c^{5})

\frac{x ^{2} - 5 x + 4}{x ^{3} - 4 x ^{2}}

2 \cdot π \cdot 1

What is expand (7x^2+9x+7)(9x-4) ?
The solution to expand (7x^2+9x+7)(9x-4) is 63x^3+53x^2+27x-28