quadratic formula question

ginny1029 said:

y= -2 plus/minus the sq rt of 2^2 - 4(1)(-2)
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2(1)

y = -2 plus/minus the sq rt of 4 - (-8)
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2

y = -2 plus/minus sq rt of 12
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2
y = -2 plus/minus sq rt of 4 times 3
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2

y= -2 plus/minus 2 sq rt of 3 >>> \(\displaystyle \frac{2(-1\pm \sqrt{3})}{2}\)
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2

now what do i do i cant cancel the -2 and the 2 out so ????>>> Can you cancel now?

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ginny1029 said:

y = -2 plus/minus sq rt of 12
all over
2

Click to expand...