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21 votes
Write x^2+5x-7 in the form (x+a)^2+b.​

User Toobee
by
3.5k points

1 Answer

4 votes

Answer: −x2+

5

x

=

7

Move

7

to the left side of the equation by subtracting it from both sides.

x

2

+

5

x

7

=

0

Once the quadratic is in standard form, the values of

a

,

b

, and

c

can be found.

a

x

2

+

b

x

+

c

Use the standard form of the equation to find

a

,

b

, and

c

for this quadratic.

a

=

1

,

b

=

5

,

c

=

7

Explanation:

User AntonSack
by
3.5k points