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postnew [5]
3 years ago
12

Multiply the expression and simplify: (x -2) (x^2 + 3x -5) *Show all work*

Mathematics
1 answer:
Gwar [14]3 years ago
4 0

(x-2)(x^2+3x-5)\qquad\text{use distributive property}\\\\=(x)(x^2)+(x)(3x)+(x)(-5)+(-2)(x^2)+(-2)(3x)+(-2)(-5)\\\\=x^3+3x^2-5x-2x^2-6x+10\qquad\text{combine like terms}\\\\=x^3+(3x^2-2x^2)+(-5x-6x)+10\\\\=\boxed{x^3+x^2-11x+10}

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Find f(2) if f(x) = 2x + 1
Fantom [35]

Answer: f(2)=5

Step-by-step explanation:

f(2)=2(2)+1=5

f(2)=5

3 0
3 years ago
Jerome spent $20 on supplies to make 50 cookies for a bake sale. Write and solve an inequality to find the price that Jerome sho
Semenov [28]

Answer:

Each cookie will have to be sold for at least $0.90 if the profit is to be made is more than $25.

Step-by-step explanation:

The amount spent on supplies is $20.

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If the profit to be made is more than $25.00 .

Then we can safely say that all the cookies have to be sold for

= $20.00 + $25.00

= $45.00

Therefor the required inequality can be written as

50 x ≥ $45.00            ⇒       x   ≥   \frac{45.00}{50}            ⇒      x   ≥  $0.90.

Therefore we can say that each cookie will have to be sold for at least $0.90 if the profit is to be made is more than $25.

7 0
3 years ago
9x - 3(x + 2) + 7<br> Simplify
Ronch [10]

9x - 3(x + 2) + 7

Multiply the bracket by -3

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7 0
3 years ago
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zimovet [89]

Answer:

12

Step-by-step explanation:

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or, 6 multiply by 36 = x multiply by 18

or, 216 = 18x

or, 216/ 18 = x

or, x= 12

6 0
3 years ago
Read 2 more answers
what are the measure measurements of angels a b and c show your work and explain your work and explain your answers
julia-pushkina [17]
A = 40° (Vertically opposite angles) 

b = 180 - 90 - 40 = 50° (Angles in a triangle add up to 180)

c = 180 - 65 = 115° (Adjacent angles on a straight line)

5 0
3 years ago
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