Question

Solve the quadratic by quadratic formula below x squared-14x=-49

Answer 1

Equation ax²+bx+c=0 arrange the equation x²-14x+49=0  a=1 b=-14 c=49
General Formula= b+ or - √b²-4ac/2a    by substituting gives us
-14+ or - √0/2  so we have one answer because 4ac is to b2 and √0 = 0             -14/2 = -7 The answer is one solution -7. If you want and extra hint there it is: b²-4ac is called the discriminant because it shows you how many solutions the equation will have if it's positive then it's 2 solutions and if it's zero then it's one solution and if it's negative no solution because b²-4ac is under a root and if a negative number is under a square root then it's undefined.

Answer 2

X^2-14x+49=0

Factor
(x-7)(x-7)

Check
-7-7=-14
-7*-7=49

Use ZPP
x-7=0
x=7

Final answer: x=7