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2 years ago

The square of a number increased by 5 times the number is equal to 176. Find one number for which this could be true.

Mathematics

2 answers:

exis [7]2 years ago

6 0

Answer: 11 or -16

Step-by-step explanation:

The square of a number increased by 5 times the number is equal to 176.

Let the number be x

Then, x²+5x=176

x²+5x-176=0

We use splitting the middle term method

x²+16x-11x-176=0

x(x+16)-11(x+16)=0

(x-11)(x+16)=0

i.e. either x-11=0 or x+16=0

i.e. either x=11 or x=-16

Hence, the number is either 11 or -16

juin [17]2 years ago

3 0

Answer: 11 or -16

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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2 years ago

A football filters that is 60 m wide and 110 m long is being paved over to make a parking lot. The builder ordered 660,000,000 c

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Answer:

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Step-by-step explanation:

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