Expand
2X^{2}-12X+17
Evaluate
2\left(X-3\right)^{2}-1
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2\left(X^{2}-6X+9\right)-1
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(X-3\right)^{2}.
2X^{2}-12X+18-1
Use the distributive property to multiply 2 by X^{2}-6X+9.
2X^{2}-12X+17
Subtract 1 from 18 to get 17.
2\left(X^{2}-6X+9\right)-1
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(X-3\right)^{2}.
2X^{2}-12X+18-1
Use the distributive property to multiply 2 by X^{2}-6X+9.
2X^{2}-12X+17
Subtract 1 from 18 to get 17.
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