Question

1.) 45r^3-15r^2

*Factoring*

2.) 9x^2-3x



3.) X^2+3x

Answer 1

NOTES: Find the common factor of the terms and factor it out:

1. Answer: 15r²(3r - 1)

Explanation:

45r³ - 15r² they both have 15 and r² as factors

`15r^2\bigg((45r^3)/(15r^2)-(15r^2)/(15r^2)\bigg)`

= 15r²(3r - 1)

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2. Answer: 3x(3x - 1)

Explanation:

9x² - 3x they both have 13 and x as factors

`3x\bigg((9x^2)/(3x)-(3x)/(3x)\bigg)`

= 3x (3x - 1)

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3. Answer: x(x + 3)

Explanation:

x² + 3x they both have x as a factor

`x\bigg((x^2)/(x)+(3x)/(x)\bigg)`

= x(x + 3)