AIR MATH

Math Question

What is the first step when rewriting \( y=3 x^{2}+9 x-18 \) in the form \( y=a(x-h)^{2}+k ? \)
3 must be factored from \( 3 x^{2}+9 x \)
\( x \) must be factored from \( 3 x^{2}+9 x \)
9 must be factored from \( 9 x-18 \)
3 must be factored from \( 3 x^{2}-18 \)

Solution

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