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Which are the solutions of the quadratic equation? x2 = 7x + 4 –7, 0 7, 0

2 Answers

2 votes

Answer:

the answer is C

Explanation:

User Bean Taxi
by
8.3k points
1 vote

Answer:


x=(7+√(65))/(2), x=(7-√(65))/(2)

Explanation:

We are given that a quadratic equation


x^2=7x+4


x^2-7x-4=0

We have to find the solutions of the quadratic equation.

a=1, b=-7,v=-4

Quadratic formula:
x=\frac{-b\pm√(b^2-4ac){2a}

Substitute the values in the quadratic formula


x=(-(-7)\pm√((-7)^2-4(1)(-4)))/(2(1))


x=(7\pm√(49+16))/(2)


x=(7\pm√(65))/(2)


x=(7+√(65))/(2), x=(7-√(65))/(2)

Hence, the solutions of quadratic equation are


x=(7+√(65))/(2), x=(7-√(65))/(2)

User Elliot Schrock
by
8.1k points