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Nina [5.8K]
3 years ago
7

Simplify: √(61-24√5)

Mathematics
1 answer:
alexandr402 [8]3 years ago
4 0

Answer:

3√(5) - 4

Step-by-step explanation:

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

√(61-24√5)

= √((4-3√5)^2)

=3√(5) - 4

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If f(-3) = -8, then f(x)= 3x +
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Answer:

f(x)= 3x + 1

Step-by-step explanation:

Let's set the unknown variable as b, since it's a linear equation.

Using the point given (-3, -8), we can find b by plugging in the known numbers and solving.

-8 = -3 (3) + b

-8 = -9 + b

b = 1

If you want, you can check it by forming the complete equation and plugging in -3.

f(x)= 3x + 1

f(-3) = -9 + 1

f(-3) = -8 = -8

I hope this helped!

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