-4(pq+pr)十(4pq+pr)=
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-4(pq+pr)十(4pq+pr)=
-4(pq+pr)十(4pq+pr)=
-4(pq+pr)十(4pq+pr)=
=-4pq+(-4pr)+4pq+pr
=-4pq-4pr+4pq+pr
=-3pr
-4(pq+pr)十(4pq+pr)=
-4(pq+pr)+(4pq+pr)
-4(pq+pr)+(4pq+pr)
4(pq+pr)-(4pq+pr)+(rq-3pr) 化简
-4(pq+pr)+(4pd+pr)
-4(pq+pr)+(4pq+pr)怎样化简
-4(pq+pr)+(4pq+pr)
计算4(pq+pr)-(4pq+qr)+(rp-3pr)a.-3pr b.-2pr c.2pr d.pr
求-4{pq+pr}+{4pq+pr}的化简过程
─4(pq+pr)+(4pq+pr)的过程和值 急急急!给好评
化简哦,-4(pq+pr)+(4pq+pr) (2x-3y)-(5x-y)-4(pq+pr)+(4pq+pr)(2x-3y)-(5x-y)-5(x-2y+1)-3x+4y)
先化简,再求值 4 (pq+pr)-(4pq+qr)+(rq-3pr),其中p=2/3,r=3/2
化简并求值:4(pq+pr)-(4pq+qr)+(rq-3pr) 其中p=5/2 r=2/3忘公式了
去括号:-2分之1(x+y)+4分之1(p+q) 化简:-4(pq+pr)+(4pq+pr)
AQ=PQ,PR=PS,PR⊥AB,PS⊥AC,求证:QP‖AR
矩形ABCD中,AB=3,BC=4,P是BC上任一点,PR⊥BD,垂足为R,PQ⊥AC,垂足为Q,则PR+PQ的值为( )
四边形ABCD是圆O的内接正方形,E是BD上一点,且BE=BC,P是CE上一点,PQ垂直BC于Q,PR垂直BD于R,且PR+PQ=4,则正
在直线m上取P,Q两点,使PQ=12cm,再在m上取一点R,使PR=4厘米,M,N分别是PQ,PR的中点,则MN是多少