<span>Factor out 2
x^2 +4x -6 = 0
Take half middle coefficient and square it:
x^2 +4x +4 -6 = 4
(x+2)^2
= 10
x+2
= sqrt(10)
x
= +-sqrt(10) -2</span>
Answer:

Step-by-step explanation:

Lets solve the fraction first

9.6230 x 0.44 = 4.23
4.23 x 3.721 = 15.76

Answer:9/2 km per hour
Step-by-step explanation:
equation,
6/9-x + 6/x=8/3
It would equal 0.45
Step-by-step explanation:
9 × 5 = 45 put a decimal in front of the 45
Answer:
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