508,933 views
32 votes
32 votes
Solve.
x² + 5x – 2=0

User Redrom
by
2.4k points

2 Answers

20 votes
20 votes
Solve the equation for X
by finding A B and c
of the quadratic then applying the quadratic formula.

I hope this helps !!
Solve. x² + 5x – 2=0-example-1
User Alex Vallejo
by
3.1k points
24 votes
24 votes

Answer:

1

Use the quadratic formula

=

±

2

4

2

x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}

x=2a−b±b2−4ac​​

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

2

+

5

2

=

0

x^{2}+5x-2=0

x2+5x−2=0

=

1

a={\color{#c92786}{1}}

a=1

=

5

b={\color{#e8710a}{5}}

b=5

=

2

c={\color{#129eaf}{-2}}

c=−2

=

5

±

5

2

4

1

(

2

)

2

1

Explanation:

this should help

User Anupam Basak
by
2.7k points