3 years ago

Percy solved the equation x^2 + 7x + 12 = 12. His work is shown below. Is Percy correct? Explain.

1 answer:

4 0

No. To solve the equation it needs to be set to 0.
1. x^2 +7x = 0
Then the GCF needs to be found
2. x(x+7) = 0
Set each to 0
3. x= 0 or x+7=0
Solve for x
4. x=0 or x=-7

You might be interested in

How do i solve f(x)=|x-2|+3

Olenka [21]

Answer:

f(x)=|x-2|+3

0=|x-2|+3

0-3=|x-2|+3-3

-3+2=x-2+2

-1=x

Step-by-step explanation:

set the function equal to zero
you can subtract 3 from both sides or you can add -2 and 3 and then you subtract your answer from both sides to solve for x

7 0

3 years ago

22 in EESEE EE Area = what is it

IRINA_888 [86]

Answer:

Look at my ista

Step-by-step explanation:

4 0

3 years ago

Evaluate 2^-5 A. -32 B. 1/32 C. -1/32 D. 32

steposvetlana [31]

Answer:

B. 1/32

Step-by-step explanation:

8 0

3 years ago

4(x-4)-3x=10 what is the answer

max2010maxim [7]

Answer:

Step-by-step explanation:

4(x-4)-3x=10

Rule = a(b + c) = ab + ac
Rule = a(b - c) = ab - ac

4(x-4) = 4x - 16

4(x-4)-3x=10

4x - 16 - 3x = 10

x - 16 = 10

x -16 +16 = 10 +16

x = 26

Hope this helps ^-^

6 0

3 years ago

Mira uses the mapping rule to find the coordinate of a point that had been rotated 90° clockwise about the origin. Examine Mira’

ioda

Answer: step 3

Step-by-step explanation:

3 0

3 years ago