방정식 풀이:(2)2(x-2)&\#178;=4-x²(3)9(2x+3)²-4(2x-5)²=0

방정식 풀이:(2)2(x-2)&\#178;=4-x²(3)9(2x+3)²-4(2x-5)²=0

2(x-2)²=4-x²2(x-2)²+x²-4=02(x-2)²+(x+2)(x-2)=0(x-2)[2(x-2)+(x+2)]=0(x-2)(3x-2)=0x1=2 x2=2/39(2x+3)²-4(2x-5)²=0[3(2x+3)]²-[2(2x-5)]²=0...