Solve Each Quadratic Equation By Factoring., 1. X\Xb2+3x+2=0, 2. X\Xb2-9x=-20, 3. X\Xb2+5x=-6, 4. X\Xb2-20x+100, 5. X\Xb2+6=7x
Solve each quadratic equation by factoring. 1. x²+3x+2=0 2. x²-9x=-20 3. x²+5x=-6 4. x²-20x+100 5. x²+6=7x Answer: 1. x²+3x+2=0 (x+2)(x+1)=0 x+2=0 | x+1=0 x=-2 | x=-1 2. x²-9x=-20 x²-9x+20=0 (x+5)(x-4)=0 x+5=0 | x-4=0 x=-5 | x=4 3. x²+5x=-6 x²+5x+6=0 (x+3)(x+2)=0 x+3=0 | x+2=0 x=-3 | x=-2 4. x²-20x+100 (x-10)(x-10) x-10=0 | x-10=0 x=10 | x=10 5. x²+6=7x x²+6-7x=0 x²-7x+6=0 (x-6)(x-1)=0 x-6=0 | x-1=0 x=6 | x=1