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Function g is defined as g(x)=2x^2+5x-1 What are the solutions to g(x)=0 A x=(-5pm sqrt (33))/(4) (i) I x=(-5pm sqrt (17))/(4) C x=(5pm sqrt (33))/(4) D x=(5pm sqrt (17))/(4)

Pergunta

Function g is defined as g(x)=2x^2+5x-1 What are the solutions to g(x)=0
A
x=(-5pm sqrt (33))/(4)
(i) I
x=(-5pm sqrt (17))/(4)
C
x=(5pm sqrt (33))/(4)
D
x=(5pm sqrt (17))/(4)

Function g is defined as g(x)=2x^2+5x-1 What are the solutions to g(x)=0 A x=(-5pm sqrt (33))/(4) (i) I x=(-5pm sqrt (17))/(4) C x=(5pm sqrt (33))/(4) D x=(5pm sqrt (17))/(4)

Solução

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Olivia MariaProfissional · Tutor por 6 anos

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To find the solutions to the equation g(x)=0
, we need to solve the quadratic equation 2x^2 + 5x - 1 = 0
.

We can use the quadratic formula to solve this equation. The quadratic formula is given by:

x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}


In this case, a = 2
, b = 5
, and c = -1
. Plugging these values into the quadratic formula, we get:

x = \frac{-5 \pm \sqrt{5^2 - 4(2)(-1)}}{2(2)}


Simplifying further, we have:

x = \frac{-5 \pm \sqrt{25 + 8}}{4}


x = \frac{-5 \pm \sqrt{33}}{4}


Therefore, the solutions to the equation g(x)=0
are:

x = \frac{-5 \pm \sqrt{33}}{4}


So, the correct answer is option A.
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