-4(qp+pr)+(4qp+pr) -5(x-2y+1)-(1-3x+4y) 1-3(x-(1/2)y^2)+(-x+(1/2)y^2)-4(qp+pr)+(4qp+pr) -5(x-2y+1)-(1-3x+4y)1-3(x-(1/2)y^2)+(-x+(1/2)y^2)
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![-4(qp+pr)+(4qp+pr) -5(x-2y+1)-(1-3x+4y) 1-3(x-(1/2)y^2)+(-x+(1/2)y^2)-4(qp+pr)+(4qp+pr) -5(x-2y+1)-(1-3x+4y)1-3(x-(1/2)y^2)+(-x+(1/2)y^2)](/uploads/image/z/13758894-54-4.jpg?t=-4%28qp%2Bpr%29%2B%284qp%2Bpr%29+-5%EF%BC%88x-2y%2B1%EF%BC%89-%EF%BC%881-3x%2B4y%EF%BC%89+1-3%EF%BC%88x-%EF%BC%881%2F2%EF%BC%89y%5E2%EF%BC%89%2B%EF%BC%88-x%2B%EF%BC%881%2F2%EF%BC%89y%5E2%29-4%28qp%2Bpr%29%2B%284qp%2Bpr%29+-5%EF%BC%88x-2y%2B1%EF%BC%89-%EF%BC%881-3x%2B4y%EF%BC%891-3%EF%BC%88x-%EF%BC%881%2F2%EF%BC%89y%5E2%EF%BC%89%2B%EF%BC%88-x%2B%EF%BC%881%2F2%EF%BC%89y%5E2%29)
-4(qp+pr)+(4qp+pr) -5(x-2y+1)-(1-3x+4y) 1-3(x-(1/2)y^2)+(-x+(1/2)y^2)-4(qp+pr)+(4qp+pr) -5(x-2y+1)-(1-3x+4y)1-3(x-(1/2)y^2)+(-x+(1/2)y^2)
-4(qp+pr)+(4qp+pr) -5(x-2y+1)-(1-3x+4y) 1-3(x-(1/2)y^2)+(-x+(1/2)y^2)
-4(qp+pr)+(4qp+pr) -5(x-2y+1)-(1-3x+4y)
1-3(x-(1/2)y^2)+(-x+(1/2)y^2)
-4(qp+pr)+(4qp+pr) -5(x-2y+1)-(1-3x+4y) 1-3(x-(1/2)y^2)+(-x+(1/2)y^2)-4(qp+pr)+(4qp+pr) -5(x-2y+1)-(1-3x+4y)1-3(x-(1/2)y^2)+(-x+(1/2)y^2)
-4(qp+pr)+(4qp+pr)
=-4qp-4pr+4qp+pr
= -3pr
-5(x-2y+1)-(1-3x+4y)
=-5x+10y-5-1+3x-4y
= -2x+6y-6
1-3(x-(1/2)y^2)+(-x+(1/2)y^2)
=1-3x+3y^2/2-x+y^2/2
=1-4x+2y^2
不晓得
-4(qp+pr)+(4qp+pr) -5(x-2y+1)-(1-3x+4y) 1-3(x-(1/2)y^2)+(-x+(1/2)y^2)-4(qp+pr)+(4qp+pr) -5(x-2y+1)-(1-3x+4y)1-3(x-(1/2)y^2)+(-x+(1/2)y^2)
AQ=PQ,PR=PS,PR⊥AB,PS⊥AC,求证:QP‖AR
qp 51 4 5.
4(pq+pr)-(4pq+pr)+(rq-3pr) 化简
-4(pq+pr)+(4pq+pr)
-4(pq+pr)+(4pq+pr)
-4(pq+pr)+(4pd+pr)
PR
PR
pr.
3pq+7pq-4pq+qp
qp 73 4 5jie xi xia
qp 52 4 5解析下
计算4(pq+pr)-(4pq+qr)+(rp-3pr)a.-3pr b.-2pr c.2pr d.pr
-4(pq+pr)+(4pq+pr)怎样化简
-4(pq+pr)十(4pq+pr)=
-4(pq+pr)+(4pq+pr)
轮胎 12.4 x 24 4 PR or 6 PR