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iVinArrow [24]
3 years ago
8

Can you help me with this?​

Mathematics
1 answer:
DochEvi [55]3 years ago
5 0

Answer:

I need some more context

Step-by-step explanation:

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17. Factor x ^ 3 + 5x ^ 2 - 9x - 45 . A. (x - 5)(x ^ 2 + 9) b . (x - 5)(x - 3) * (x + 3) Factor By Groupin (x + 5)(x - 3) * (x +
jok3333 [9.3K]

Answer:

b

Step-by-step explanation:

Given

x³ + 5x² - 9x - 45 ( factor the first/second and third/fourth terms )

= x²(x + 5) - 9(x + 5) ← factor out (x + 5) from each term

= (x + 5)(x² - 9) ← factor as a difference of squares

= (x + 5)(x - 3)(x + 3)

3 0
3 years ago
Choose the correct simplification of the expression −3x2(5x − 4x2 − 6).
Bess [88]
Answer B.
- 3 {x}^{2} (5x - 4 {x}^{2} - 6) \\  =  - 15 {x}^{3}  + 12 {x}^{4}  + 18 {x}^{2}  \\  = 12 {x}^{4}  - 15 {x}^{3}  + 18 {x}^{2}
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3 years ago
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WHO EVER ANSWERS FIRST GETS BRSINLESTTTT!!!!!!
VLD [36.1K]
4+(-6)/(-2) = 7
5/2+(-3/2)=1
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8 0
2 years ago
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Solve the equation for the indicated variable 4=t-7s , for t
solong [7]

Answer:

t = 7s + 4

Step-by-step explanation:

The goal is to get t alone. So we should move 7s to the other side of the equals to sign. When we move 7s to the other side of the equals to sign the sign changes to -7s. There are no like terms to be collected so the answer should be 7s + 4 for t.

7 0
3 years ago
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Why isn’t the square root of 10 an integer, answer asap please
Volgvan

Answer:

because the square root of 10 is an irrational number, and only rational numbers are integers. integers are whole numbers and have no fractions or decimels... hope it helps

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3 years ago
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