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30 votes
30 votes
Can someone help me pls

Can someone help me pls-example-1
User HowieH
by
3.2k points

1 Answer

18 votes
18 votes

Answer:

(d) x = (5±√53)/2

Explanation:

The given quadratic equation is in standard form, so the coefficients are readily identified. The solution is given by the quadratic formula based on those coefficients.

Quadratic formula

The solution to the quadratic equation ax² +bx +c = 0 is given by the formula ...


x=(-b\pm√(b^2-4ac))/(2a)

Application

The given equation has coefficients a = 1, b = -5, c = -7, so the solutions given by the formula are ...


x=(-(-5)\pm√((-5)^2-4(1)(-7)))/(2(1))=(5\pm√(25+28))/(2)\\\\\boxed{x=(5\pm√(53))/(2)}

User Qjuanp
by
2.9k points
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