How do you write $10 x (9 x^{2} + 6 x + 7)$ $10x(9x^2 + 6x + 7)$ in standard form?

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Answer 1 · 2016-05-25T09:52:27

$\Rightarrow y = 90 x^{3} + 60 x^{2} + 70 x$ $=>y=90x^3+60x^2+70x$

Multiply everything inside the rackets by $10 x$ $10x$

$\Rightarrow y = 90 x^{3} + 60 x^{2} + 70 x$ $=>y=90x^3+60x^2+70x$

If it is required that the constant term is included then you have:

$\Rightarrow y = 90 x^{3} + 60 x^{2} + 70 x + 0$ $=>y=90x^3+60x^2+70x+0$

How do you write 10x(9x2+6x+7)10x(9x^2 + 6x + 7) in standard form?