The factored form of a quadratic equation tells us the roots of a quadratic equation. Solve each equation with the quadratic formula. X b b 2 4 a c 2 a xdfrac -bpmsqrt b2-4ac 2a x 2 a b b 2 4 a c.
4x2100 0 21.
4x2100 0 21. 3 times 4 12 and 3 4 7 so a and b are equal to 3 and 4. Completing The Square 2. Then we can identify that here a 1 b 2 a1 b-2 a 1 b 2 and c 4 4 c-44 c 4 4.