Решите уравнение способом разложения на множители:

1) х²-100=0;

2) 49-х²=0;

3) х²-7=0;

4) х²-12=0;

5) 7х²-63=0;

6) 5х²-35=0;

7) 64х²-25=0;

8) 2х²-50=0;

9) 6х²-30=0;

10) 25х²-81=0;

x²-100=0(x+10)(x-10)=0x+10=0x1= -10x-10=0x2=10x=±1049-x²=0(7-x)(7+x)=07-x=0x1=77+x=0x2= -7x=±7x² -7=0(x-√7)(x+√7)=0x-√7=0x1=√7x+√7=0x2=-√7x=±√7x² -12=0(x-√12)(x+√12)=0x-√12=0x=√12x+√12=0x2= -√12x=±√12=±2√37x²-63=0x²-9=0(x-3)(x+3)=0x-3=0x1=3x+3=0x2= -3x=±35x²-35=0x² -7=0(x-√7)(x+√7)=0x-√7=0x1=√7x+√7=0x2=-√7x=±√764x²-25=0(8x-5)(8x+5)=08x-5=08x=5x1=5/88x+5=08x= -5x2= -5/8x=±5/82x²-50=0x²-25=0(x-5)(x+5)=0x-5=0x1=5x+5=0x2= -5x=±56x²-30=0x²-5=0(x-√5)(x+√5)=0x-√5=0x1=√5x+√5=0x2= -√5x=±√525x²-81=0(5x-9)(5x+9)=05x-9=05x=9x1=1.85x+9=05x= -9x2= -1.8x=±1.8