Question

解方程:X(35-2X)=150

Answer 1

35X-2X^2=1502X^2-35X+150=0(X-10)(2X-15)=0X1=10,X2=15/2

Answer 2

2x^2-35x+150=0 (x-10)(2x-15)=0 x1=10 x2=7.5

Answer 3

35X-2X^2=1502X^2-35X+150=0(2X-15)(X-10)=0X=7.5，10

Answer 4

2x^2-35x+150=0（x-10）（2x-15）=0x=10，x=7.5

Answer 5

12.5和5