1) 5(X+2)^2-75=0 2) x-√2=5X(√2-X) 3)X^2-√64=0 4)2X^2-3√6-11/2=0 5)3X(X-2)=5(2-X) 5)(3X+2)^2=8(X-1)^2-100 会一题也好,
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/20 07:18:33
![1) 5(X+2)^2-75=0 2) x-√2=5X(√2-X) 3)X^2-√64=0 4)2X^2-3√6-11/2=0 5)3X(X-2)=5(2-X) 5)(3X+2)^2=8(X-1)^2-100 会一题也好,](/uploads/image/z/4357880-8-0.jpg?t=1%29+5%28X%2B2%29%5E2-75%3D0+2%29+x-%E2%88%9A2%3D5X%28%E2%88%9A2-X%EF%BC%89+3%EF%BC%89X%5E2-%E2%88%9A64%3D0+4%EF%BC%892X%5E2-3%E2%88%9A6-11%2F2%3D0+5%EF%BC%893X%28X-2%29%3D5%282-X%EF%BC%89+5%EF%BC%89%EF%BC%883X%2B2%EF%BC%89%5E2%3D8%28X-1%EF%BC%89%5E2-100+%E4%BC%9A%E4%B8%80%E9%A2%98%E4%B9%9F%E5%A5%BD%2C)
1) 5(X+2)^2-75=0 2) x-√2=5X(√2-X) 3)X^2-√64=0 4)2X^2-3√6-11/2=0 5)3X(X-2)=5(2-X) 5)(3X+2)^2=8(X-1)^2-100 会一题也好,
1) 5(X+2)^2-75=0 2) x-√2=5X(√2-X) 3)X^2-√64=0 4)2X^2-3√6-11/2=0 5)3X(X-2)=5(2-X) 5)(3X+2)^2=8(X-1)^2-100 会一题也好,
1) 5(X+2)^2-75=0 2) x-√2=5X(√2-X) 3)X^2-√64=0 4)2X^2-3√6-11/2=0 5)3X(X-2)=5(2-X) 5)(3X+2)^2=8(X-1)^2-100 会一题也好,
1) 5(X+2)^2-75=0 ==> (x+2)^=75/5=25 ==> |x+2|=5 ==> x=3,-7 2) x-√2=5X(√2-X) ==> (x-√2) - 5X(√2-X)=0 ==> (x-√2) * (1+5X)=0 ==> x=√2,-1/5 3)X^2-√64=0 ==> X^2=√64 ==> x^2=8 ==> x=2√2,-2√2 4)2X^2-3√6-11/2=0 ==> 2X^2=3√6+11/2 ==> X^2=3/2*√6+11/4 ==> X=±√(3/2*√6+11/4)=±[√(6*√6+11)]/2 5)3X(X-2)=5(2-X) ==> 3X(X-2)-5(2-X)=0 ==> (x-2)(3x+5)=0 ==> x=2,-5/3 6)(3X+2)^2=8(X-1)^2-100 ==> 9x^2+12x+4=8x^2-16x+8-100 ==> x^2+28x+96=0 ==> (x+4)(x+24)=0 ==> x= -4,-24