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Alla [95]
1 year ago
13

Quadratic equations Please Help Me!!!!!!

Mathematics
1 answer:
igor_vitrenko [27]1 year ago
7 0

The roots are 1 +√7 and 1 -√7.

<h3>What is Quadratic equation?</h3>

A quadratic equation in the variable x is an equation of the form ax² + bx + c= 0, where a, b, c are real numbers, a≠0

Given equation:

y= x²+2x-6

First,

Half the coefficient of x and add and subtract the square of (b/2)

y= x²+2x-6+(1)²-(1)²

y= x²+2x+(1)² -6 -(1)²

y= (x+1)² -7

Now, equate y=0

(x+1)² -7 =0

(x+1)² = 7

x+1= ±√7

x=1 ±√7

Hence, the roots are 1 +√7 and 1 -√7.

Learn more about quadratic equation here:

brainly.com/question/1962219

#SPJ1

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The side lengths of a triangle are 7, 24, and 25. Is this triangle a right triangle?
IrinaVladis [17]

Answer:

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Step-by-step explanation:

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4 0
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Read 2 more answers
An owner of an repair service Company eliminates that for every 30 hours a repair person is on the job he can bill for only 72%
vredina [299]

Answer: He is idle for 8.4 hours.

Step-by-step explanation:

Since we have given that

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Percentage of hours he worked = 72%

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3 years ago
2. Express the number 1750 as a product of prime factors of the form:<br> p * qr * s
Artyom0805 [142]

9514 1404 393

Answer:

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Step-by-step explanation:

It is often helpful to start with divisibility rules when finding prime factors of a small composite number.

The least-significant digit is even, so we know 2 is a factor.

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7 is a prime number, so we're done.

The factorization is ...

  1750 = 2 · 5³ · 7

4 0
2 years ago
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