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vladimir1956 [14]
3 years ago
13

Let a=x^2+4. Use a to find the solutions for the following equation:

Mathematics
2 answers:
Kitty [74]3 years ago
7 0

Answer:

-2,0, 2(+)

Step-by-step explanation:

Helga [31]3 years ago
4 0
(x^2+4)^2 + 32 = 12x^2 + 48 .... a = x^2 + 4 
<span>(x^2 + 4)^2 + 32 = 12(x^2 + 4) </span>
<span>a^2 + 32 = 12a </span>
<span>a^2 - 12a + 32 = 0 </span>
<span>(a - 8)(a - 4) = 0 </span>
<span>a = 8 and a = 4 </span>

<span>for a = 8 ... 8 = x^2 + 4 ... x^2 = 4 ... x = +/- 2 </span>
<span>for a = 4 ... 4 = x^2 + 4 ... x^2 = 0 ... x = 0 </span>

<span>x = -2, 0, +2 so your answer is going to be e

</span>
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Step-by-step explanation:

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4 0
3 years ago
F(x)=x^2+10x-12
weqwewe [10]

Answer:

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Step-by-step explanation:

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ii) The question is therefore essentially asking us to find the roots of the given quadratic equation.

This can be done by equating the given quadratic equation to zero and then solving the equation for its roots.

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Step-by-step explanation:

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Step-by-step explanation:

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