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Help please thank you!

Help please thank you!-example-1
User Zjywill
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2 Answers

5 votes
4x^2 + 16x-2= 5x
Minus 16x over

4x2-2= -11x

Add 11x over

4x^2 +11x -2

Use quadratic formula x= 2.9
I’m not sure here. I tried my best. Hope it helps!
User Bladexeon
by
8.2k points
6 votes

Answer:


x_1=-2.9\\x_2=0.2

Explanation:

The first step is to move the
5x to the left side of the equation and then add the like terms:


4x^2+16x-2=5x\\\\4x^2+16x-2-5x=0\\\\4x^2+11x-2=0

Now we can apply the Quadratic formula. This is:


x=(-b\±√(b^2-4ac))/(2a)

In this case we can identify that:


a=4\\b=11\\c=-2

Finally, we must substitute these values into the Quadratic formula. Then we get:


x=(-11\±√((11)^2-4(4)(-2)))/(2(4))


x_1=-2.9\\x_2=0.2

User George Savva
by
7.6k points