All categories

2 years ago

Find the discriminant of x²+6x+9=0

Mathematics

1 answer:

Rainbow [258]2 years ago

8 0

Answer:

x²+6x+9=0

x²+3x+3x+9=0

x(x+3)+3(x+3)=0

(x+3)(x+3)=0

either

x+3=0

x=-3

x+3=0

x=-3

Step-by-step explanation:

next method

x²+6x+9=0

x²+2×x×3+3²=0

it is in formula of (x+y)²

(x+3)²=0

x+3=√0

x+3=0

x=-3

You might be interested in

Find the GCF for the pair 4, 49.

IgorC [24]

I believe the GCF for the park 4 and 49 is 1.

6 0

2 years ago

The 'Queen Mary' used to sail across the Atlantic Ocean The ships usual speed was 33 miles per hour. On average, the ship used f

makkiz [27]

13403.07692307692 i think is the answer because you multiply 5280 by 33 and then divide by 13.

6 0

2 years ago

How do you describe the square root of a rational number

lisabon 2012 [21]

Answer:

I am a 4th grader I don't know

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

4w + x + 2y - 3z= -16

barxatty [35]

See photo. I hope it helps

3 0

2 years ago

3 sevenths 2 sevenths equals

Schach [20]

3 sevenths plus 2 sevenths equals 5 sevenths

3/7 + 2/7 = 5/7 because you're adding 3 and 2 which gives you 5.

5 0

2 years ago

Read 2 more answers

Find the discriminant of x²+6x+9=0 ​

Find the discriminant of x²+6x+9=0