3 years ago

Factor completely: 9(x–1)−(x–1)^2

Mathematics

2 answers:

denis23 [38]3 years ago

4 0

Answer:

=−x2+11x−10

Step-by-step explanation:

Let's simplify step-by-step.

9(x−1)−(x−1)2

Distribute:

=(9)(x)+(9)(−1)+−x2+2x+−1

=9x+−9+−x2+2x+−1

Combine Like Terms:

=9x+−9+−x2+2x+−1

=(−x2)+(9x+2x)+(−9+−1)

=−x2+11x+−10

Law Incorporation [45]3 years ago

3 0

Answer:

(−x+1)(x−10)

Step-by-step explanation:

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Zielflug [23.3K]

Step-by-step explanation:

Given

$= \frac{1.5 \times {10}^{4} \times 4.5 \times {10}^{3} }{2.5 \times 10 ^{2} } \\ = \frac{6.75 \times {10}^{4 + 3} }{2.5 \times {10}^{2} } \\ = \frac{6.75 \times {10}^{7} }{2.5 \times {10}^{2} } \\ = 2.7 \times {10}^{7 - 2} \\ = 2.7 \times {10}^{5}$

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3 years ago

The ratio of the number of apples to the number of pears in a basket was 3:5. After 7more apples were added to the basket and 9

atroni [7]

Answer:

Apples = 24

Pears = 40

Step-by-step explanation:

Let u be the unit of fruit in the basket,

number of apples: $3u +7$

number of pears: $5u -9$

now to find u, we equate the two equations.

$3u+7=5u-9$

Now simplify.

$5u-3u=7+9$

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