(4+3х)(3х-4)+(2х+1)²=9х²-16+4х²+4х+1=13х²+4х-15
(3+2р)(2р-3)-(р+2)²=4р²-9-(р²+4р+4)=4р²-9-р²-4р-4=3р²-4р-13
третий не уверена как решать, прости
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(4+3х)(3х-4)+(2х+1)²=9х²-16+4х²+4х+1=13х²+4х-15
(3+2р)(2р-3)-(р+2)²=4р²-9-(р²+4р+4)=4р²-9-р²-4р-4=3р²-4р-13
третий не уверена как решать, прости
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\begin{lgathered}\displaystyle \tt (3+2p)(2p-3)-(p+2)^2=(2p+3)(2p-3)-(p^2+4p+4)=4p^2-9-p^2-4p-4=\\\displaystyle \tt =\bold{3p^2-4p-13}\end{lgathered}(3+2p)(2p−3)−(p+2)2=(2p+3)(2p−3)−(p2+4p+4)=4p2−9−p2−4p−4==3p2−4p−13
\begin{lgathered}\displaystyle \tt (1-3y)(1+6y+9y^2)+9(6y^3-1)=1+6y+9y^2-3y-18y^2-27y^3+54y^3-9