因式分解法解(Y+2)(2Y+3)=6

问题描述:

因式分解法解(Y+2)(2Y+3)=6

(Y+2)(2Y+3)=6
2Y^2+3Y+4Y+6=6
2Y^2+7Y=0
Y(2Y+7)=0
Y=0或Y=-7/2

(Y+2)(2Y+3)=6
2Y²+7Y=0
Y(2Y+7)=0
Y=0
Y= -7/2

2Y^2+7Y+6=6
2Y^2+7Y=0
Y(2Y+7)=0
Y=0 或 Y=-3.5

(Y+2)(2Y+3)=6,化为:
Y(2Y+7)=0
Y=0或Y=-7/2

(Y+2)(2Y+3)=6
2y²+3y+4y+6=6
2y²+7y=0
y﹙2y+7﹚=0
y=0,2y+7=0
y=0,y=-7/2