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Dvinal [7]
3 years ago
7

If f(x) = x2 + 2x, then find f(a+h)-f(a)

Mathematics
1 answer:
sertanlavr [38]3 years ago
6 0
Subsitute a+h for x and a for x


f(a+h)-f(a)=
(a+h)^2+2(a+h)-(a^2+2a)
a^2+2ah+h^2+2a+2h-a^2-2a
2ah+h^2 is the result
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3 years ago
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If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalen
Alisiya [41]
The answer is <span>2(–4y + 13) – 3y = –29

Step 1: Express </span><span>x from the second equation
Step 2: Substitute x into the first equation:

The system of equations is:
</span><span>2x – 3y = –29 
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Step 1: 
</span>The second equation is:    x + 4y = 13
Rearrange it to get x:         x = - 4y + 13

Step 2:
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Substitute x from the second equation into the first one:
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Therefore, the second choice is correct.
5 0
3 years ago
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