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bogdanovich [222]
3 years ago
7

Find out for what value of the variable:

Mathematics
1 answer:
Burka [1]3 years ago
5 0

Answer:

a=-1,\ a=-5

x=-2+i,\ -2-i

Step-by-step explanation:

<u>Equations</u>

We have two cases where some variable is required to be found such that some condition is met. The first case is about finding the value of a that complies:

a^2+7a+6=a+1

Rearranging

a^2+6a+5=0

Factoring:

(a+1)(a+5)=0

There are two solutions:

a=-1,\ a=-5

The second case requires us to find the value of x such that

3x^2-x+1 =2x^2+5x-4

Rearranging

x^2+4x+5=0

This second-degree equation has no real roots. We'll offer the imaginary (complex) solutions:

x=-2+i,\ -2-i

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