解方程:x*(16-x)⼀2=30

2024-12-01 01:36:41
推荐回答(5个)
回答1:

16x-x²=60
x²-16x+60=0
(x-10)(x-6)=0
x1=10
x2=6

回答2:

x×(16-x)/2=30
16x-x²=60
-x²+16x-60=0
x²-16x+60=0
(x-6)(x-10)=0
x1=6;x2=10

回答3:

16x-x^2=60
x^2-16x+60=0
(x-10)(x-6)=0
x=10,x=6

回答4:

16X-X^2=60
X^2-16X+60=0
(X-6)(X-10)=0
故X1=6:X2=10

回答5:

16X-X^2=60
X^2-16X+60=0
(X-10)(X-6)=0
X=10 X=6