3 years ago

If f(x) = 2x^2+ 1 and g(x)= x^2-7, find (f-g)(x)

Mathematics

1 answer:

Ganezh [65]3 years ago

4 0

Answer:

2x squared +1 (-)x squared -7 is

a.) x squared +8

Step-by-step explanation:

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scoray [572]

2x^2 + 28x + 98 =
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3 years ago

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rewona [7]

Answer:

Step-by-step explanation:

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3 years ago

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Snowcat [4.5K]

Answer:

The answer is the option B

$-4,-14$

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

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$x^{2}+18x+56=0$

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substitute in the formula

$x=\frac{-18(+/-)\sqrt{18^{2}-4(1)(56)}} {2(1)}$

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Vitek1552 [10]

Answer:

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