Question 314055
9. The solution to (x+3)^2 - 25= 0
10. What is the discriminate of 2x^2 - 3x -5 = 0????
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How can you have problems like 9 and 10, when you don't know how to do #2 and #3?
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Getting the answers won't be much help.
9. The solution to (x+3)^2 - 25= 0
(x+3)^2 = 25
Take the square root of both sides
x+3 = ± 5
x = 2
x = -8
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10. What is the discriminate of 2x^2 - 3x -5 = 0????
It's discriminant.
Disc = b^2 - 4ac = 9 - 4*2*(-5) = 9 + 40
Disc = 49