simplify :a) -7n(n-1)+n^2
(−7n)(n−1)+n2=(−7n)(n)+(−7n)(−1)+n2=−7n2+7n+n2=−7n2+7n+n2=(−7n2+n2)+(7n)=−6n2+7nHope this helps!
-6n^2 + a + 7n hopefully this helps
