3 years ago

Solve x2 + 6x + 7 = 0.

Mathematics

1 answer:

Mrrafil [7]3 years ago

7 0

Answer:

x = -6 and -1

Step-by-step explanation:

x^2 + 6x + 7

Factorise- find two numbers that multiply to be 6 and add to be 7: 6 and 1

(x+6)(x+1)

Set each expression equal to 0 and solve

x + 6 = 0 -> x = -6

x + 1 = 0 -> x = -1

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Simplify the expression

ollegr [7]

Answer:

Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

Remember the slope intercept form:

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So in this case,

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3 years ago

1. What is the solution to 5 + t = 23 a. T=28 b. T=18 c. T= -18 d. T= -23 2. What is the value of b if -7 + b = -8 a. B=15 c. B=

kramer

The answer to number one is 18 and the answer to number two is -1

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3 years ago

Read 2 more answers

Learning Task 1: Choose the correct answer. Write your answers on your answer sheet.

irina [24]

Answer
Q1- c
Q2-c
Q3-d
Q4-b
Q5-a

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2 years ago

How will the solution of the system y > 2x + 2 and y<

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Answer:

There is no solution to the system in its original form. There are no points in common. If the signs are reversed, the solution has an intersection with an infinite number of solutions.

Step-by-step explanation:

Its right on edg

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3 years ago