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3 votes
I need help with this question. Someone plz help!!

I need help with this question. Someone plz help!!-example-1

2 Answers

4 votes

step 4: x^2+4=10 |work square x and 2|

step 5: x^2=6 |work subtract 4 from both sides|

step 6: X = 2.44 |work find the root of 6|

User Chip Uni
by
5.6k points
6 votes

Answer with step-by-step explanation:

The first three steps of completing the square to solve the quadratic equation
x^2+4x-6=0 are given in the question which include:

Step 1:
x^2+4x=6

Step 2:
x^2+4x+4=6+4

Step 3:
(x+2)^2=10

So the next three steps will be:

Step 4:
\sqrt { ( x + 2 ) ^2 } = \sqrt { 10 }

(taking square root on both sides of
(x+2)^2=10 to get
x+2 = +-√(10))

Step 5: solve for x(
x+2=3.16 , (
x+2=-3.16

(solve for x)

Step 6:
x=1.06 or
x=-5.16

(evaluate)

User Dyo Medio
by
5.0k points
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