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atroni [7]
3 years ago
9

(x-9)(x+9) find the product

Mathematics
1 answer:
klio [65]3 years ago
7 0

Method 1.

Use (a-b)(a+b)=a^2-b^2

(x-9)(x+9)=x^2-9^2=x^2-81

Method 2.

Use distributive property: (a + b)(c + d) = ac + ad + bc + bd

(x-9)(x+9)=(x)(x)+(x)(9)+(-9)(x)+(-9)(9)=x^2+9x-9x-81=x^2-81

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EXPERTS, ACES, GENIUSES, TRUSTED HELPERS, AND ELITE HELPERS ONLY PLEASE!!!
charle [14.2K]
8) factor 6+17g+10g^2
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C is the answer.

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4 0
3 years ago
Read 2 more answers
Rewrite the following quadratic functions in intercept or factored form. Show your work.
Mariulka [41]

<u>Answer:</u>

y = 5x (x+2)

<u>Step-by-step explanation:</u>

We are given the following the quadratic function and we are to rewrite it in intercept or factored form:

y = 5x^2 + 10x

We can factorize the given expression so taking the common factors out of it to get:

y=5x^2 + 10x

y = 5x (x + 2)

Therefore, the factored form of the given quadratic function is y = 5x (x+2).

4 0
3 years ago
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37 is ____ % of 148;
stiks02 [169]
37     ?%
---- = ----
148  100

37*100=3700
             --------- =  25% <---hope this helps
               148
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3 years ago
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cestrela7 [59]
Ok, let’s take it step by step.
In order to write an equation in slope intercept form, solve for y.
3x+4y=12
First, subtract 3x from both sides.
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Now, divide both sides by 4.
y=-3/4x+3.

So, 3x+4y=12 written in slope intercept form is y=-3/4x+3.
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3 years ago
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Evaluate 3x2 - 2x when x = 5
White raven [17]

Answer:

The answer is 65

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2 years ago
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