write in standar form (x-3) ²+(x+2) ³
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Step-by-step explanation:
Expand the brackets:
f(x)=−3(x2+4x+4)+5
Multiply out the bracket:
f(x)=−3x2−12x−12+5
Collect like terms:
f(x)=−3x2−12x−7, as required
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