1 answer:
Answer: See explanation
Step-by-step explanation:
1. (x + 6)(x - 4)
x (x - 4) + 6 (x - 4)
x² - 4x + 6x - 24
<em>x² + 2x - 24</em>
<em></em>
2. (2x + 5)(x - 3)
2x (x - 3) + 5 (x - 3)
2x² - 6x + 5x - 15
<em>2x² - x - 15</em>
<em></em>
3. (3x + 2)(2x + 5)
3x (2x + 5) + 2 (2x + 5)
6x² + 15x + 4x + 10
<em>6x² + 19x + 10</em>
<em></em>
4. (2x - 1)(x - 5)
2x (x - 5) + -1 (x - 5)
2x² - 10x + -x + 5
2x² - 10x - x + 5
<em>2x² - 11x + 5</em>
<em></em>
Hope that helped!
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I think number four
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Step-by-step explanation:
f(x)=4x+3. f(x)=27
so 27=4x+3
27-3 =4x
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x=24/4
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28
Step-by-step explanation:
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5%
Step-by-step explanation:
15/300 = 0.05
5%
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