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

2 answers:

6 0

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.

lubasha [3.4K]3 years ago

5 0

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

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