NOTES: Find the common factor of the terms and factor it out:
1. Answer: 15r²(3r - 1)
Step-by-step explanation:
45r³ - 15r² they both have 15 and r² as factors
[tex]15r^2\bigg(\dfrac{45r^3}{15r^2}-\dfrac{15r^2}{15r^2}\bigg)[/tex]
= 15r²(3r - 1)
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2. Answer: 3x(3x - 1)
Step-by-step explanation:
9x² - 3x they both have 13 and x as factors
[tex]3x\bigg(\dfrac{9x^2}{3x}-\dfrac{3x}{3x}\bigg)[/tex]
= 3x (3x - 1)
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3. Answer: x(x + 3)
Step-by-step explanation:
x² + 3x they both have x as a factor
[tex]x\bigg(\dfrac{x^2}{x}+\dfrac{3x}{x}\bigg)[/tex]
= x(x + 3)
