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Elenna [48]
3 years ago
6

Pls can someone help me expand:(x+5)(x-8) in quadratic equation

Mathematics
1 answer:
Diano4ka-milaya [45]3 years ago
4 0

(x + 5)(x - 8)

= x² + {5 + (-8)}x + 5(-8)

= x² - 3x - 40

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What is the value of x
geniusboy [140]

Answer:

11

Step-by-step explanation:

3x+2

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If f(x) = 2x + 3 and g(x) = x^2 + 1,find f(g(3)).<br> A.) 23<br> B.) 47<br> C.) 82<br> D.) 90
marta [7]
The answer is A). 23. 
<span>g(x)= 2x + 3 </span>
<span>g(x) = x^2 + 1 </span>
<span>g(3) = 10 </span>
<span>f(g(3)) </span>
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6 0
4 years ago
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serious [3.7K]

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Step-by-step explanation:

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3 0
3 years ago
Erica solved the equation −5x − 25 = 78; her work is shown below. Identify the error and where it was made. (5 points)
NemiM [27]
If you would like to solve the equation -5x - 25 = 78, you should do this using the following steps:

<span>-5x - 25 = 78
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7 0
3 years ago
Read 2 more answers
Please help I need the right answer ill give brainliest pleaseee helpppp
drek231 [11]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
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