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Effectus [21]
3 years ago
5

Does anyone know a reliable way of getting edgeinuity answers for geometry?

Mathematics
1 answer:
MrRissso [65]3 years ago
8 0
Quizlet.com hope it helps
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An expression is shown below: 2x3y + 18xy − 10x2y − 90y Part A: Rewrite the expression by factoring out the greatest common fact
SCORPION-xisa [38]

Answer:

Part A : 2y( x³ + 9x - 5x² - 45 ), Part B : 2y( x - 5 )( x² + 9 )

Step-by-step explanation:

Part A : Let's break every term down here to their " prime factors ", and see what is common among them,

2x³y + 18xy − 10x²y − 90y -

2x³y  = 2 * x³ * y,

18xy = 2 * 3 * 3 * x * y,

− 10x²y = 2 * - 5 * x² * y, - so as you can see for this example I purposely broke down - 10 into 2 and - 5. I could have placed the negative on the 2, but as that value was must likely common among all the terms, I decided to place it on the 5. The same goes for " − 90y. " I placed the negative there on the 5 once more.

− 90y = 2 * - 5 * 3 * 3 * y

The terms common among each term are 2 and y. Therefore, the GCF ( greatest common factor ) is 2x. Let's now factor the expression using this value.

2y( x³ + 9x - 5x² - 45 )

Part B : Let's simply factor this entire expression. Of course starting with the " factored " expression : 2y( x³ + 9x - 5x² - 45 ),

2y\left(x^3+9x-5x^2-45\right) - Factor out " (x^3+9x-5x^2-45\right)) " by grouping,

\left(x^3-5x^2\right)+\left(9x-45\right) - Factor 9 from 9x - 45 and x² from x³ - 5x²,

9\left(x-5\right)+x^2\left(x-5\right) - Factor out common term x - 5,

\left(x-5\right)\left(x^2+9\right) - And our solution is thus 2y( x - 5 )( x² + 9 )

3 0
3 years ago
If f(×)=4×^2+1 and g(x)=×^2-5 find (f-g)(×)​
trasher [3.6K]

Answer:

\large\boxed{(f-g)(x)=3x^2+6}

Step-by-step explanation:

(f-g)(x)=f(x)-g(x)\\\\f(x)=4x^2+1,\ g(x)=x^2-5\\\\\text{Substitute:}\\\\(f-g)(x)=(4x^2+1)-(x^2-5)=4x^2+1-x^2-(-5)\\\\=4x^2+1-x^2+5\qquad\text{combine like terms}\\\\=(4x^2-x^2)+(1+5)=3x^2+6

8 0
3 years ago
It the ratio 35 to 10 proportional to the ratio 7 to 5
ipn [44]
Response:

35 : 10 = 7 : 2

Therefore 35 : 10 ≠ 7 : 5
4 0
3 years ago
Write an expression that shows how to multiply 4x362 using place value and expanded form
igomit [66]
4x300+4x60+4x2
1200+240+8
1448
5 0
3 years ago
Simplify.<br> (4v2-5v-1) + (7v2-3v+2)
Rudiy27

Answer:

11v^2 - 8v + 1

Step-by-step explanation:

(4v^2 - 5v - 1) + (7v^2 - 3v + 2)

open brackets

4v^2 - 5v - 1 + 7v^2 - 3v + 2

place like terms together (remember signs remain same )

4v^2 + 7v^2 - 5v - 3v + 2 - 1

add or subtract like terms

11v^2 - 8v + 1

8 0
2 years ago
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