Q. Expand and simplify (x−5)(x+1)(A) x2+6x+5(B) x2−4x−5(C) x2−6x+5
Apply FOIL method: To expand the expression (x−5)(x+1), we will use the distributive property, also known as the FOIL method (First, Outer, Inner, Last).First: x×x=x2Outer: x×1=xInner: −5×x=−5xLast: −5×1=−5Now we combine these results to get the expanded form.
Combine FOIL results: Combining the terms from the FOIL method, we get:x2+x−5x−5Now we need to combine like terms, which are the x terms in this case.
Combine like terms: Combining the like terms x and −5x gives us:x2+(1−5)x−5This simplifies to:x2−4x−5
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