(1)因式分解:M(X-Y)²-X+Y (2)求不等式(3X+4)(3X-4)<9(X-2)(X-3)的自然数解1)因式分解:M(X-Y)²-X+Y (2)求不等式(3X+4)(3X-4)<9(X-2)(X-3)的自然数解 (3)说明5&SUP8-1
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![(1)因式分解:M(X-Y)²-X+Y (2)求不等式(3X+4)(3X-4)<9(X-2)(X-3)的自然数解1)因式分解:M(X-Y)²-X+Y (2)求不等式(3X+4)(3X-4)<9(X-2)(X-3)的自然数解 (3)说明5&SUP8-1](/uploads/image/z/2120358-30-8.jpg?t=%EF%BC%881%EF%BC%89%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%EF%BC%9AM%28X-Y%29%26%23178%3B-X%2BY+%EF%BC%882%EF%BC%89%E6%B1%82%E4%B8%8D%E7%AD%89%E5%BC%8F%EF%BC%883X%2B4%EF%BC%89%EF%BC%883X-4%EF%BC%89%EF%BC%9C9%EF%BC%88X-2%EF%BC%89%EF%BC%88X-3%EF%BC%89%E7%9A%84%E8%87%AA%E7%84%B6%E6%95%B0%E8%A7%A31%EF%BC%89%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%EF%BC%9AM%28X-Y%29%26%23178%3B-X%2BY+%EF%BC%882%EF%BC%89%E6%B1%82%E4%B8%8D%E7%AD%89%E5%BC%8F%EF%BC%883X%2B4%EF%BC%89%EF%BC%883X-4%EF%BC%89%EF%BC%9C9%EF%BC%88X-2%EF%BC%89%EF%BC%88X-3%EF%BC%89%E7%9A%84%E8%87%AA%E7%84%B6%E6%95%B0%E8%A7%A3+%EF%BC%883%EF%BC%89%E8%AF%B4%E6%98%8E5%26SUP8-1)
(1)因式分解:M(X-Y)²-X+Y (2)求不等式(3X+4)(3X-4)<9(X-2)(X-3)的自然数解1)因式分解:M(X-Y)²-X+Y (2)求不等式(3X+4)(3X-4)<9(X-2)(X-3)的自然数解 (3)说明5&SUP8-1
(1)因式分解:M(X-Y)²-X+Y (2)求不等式(3X+4)(3X-4)<9(X-2)(X-3)的自然数解
1)因式分解:M(X-Y)²-X+Y (2)求不等式(3X+4)(3X-4)<9(X-2)(X-3)的自然数解 (3)说明5&SUP8-1能被20~30之间的两个整数整除
(1)因式分解:M(X-Y)²-X+Y (2)求不等式(3X+4)(3X-4)<9(X-2)(X-3)的自然数解1)因式分解:M(X-Y)²-X+Y (2)求不等式(3X+4)(3X-4)<9(X-2)(X-3)的自然数解 (3)说明5&SUP8-1
(1)因式分M(X-Y)²-X+Y
=M(X-Y)²-(X-Y)
=(X-Y)(MX-MY-1)
(2)求不等式(3X+4)(3X-4)<9(X-2)(X-3)的自然数解
9x²-16<9(x²-5x+6)
9x²-16<9x²-45x+54
-16<-45x+54
45x<54+16=70
x<70/45=14/9
自然数解为x等于0和1
第三问看不懂.