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Paha777 [63]
3 years ago
14

(x-4)*(x-9)=0 what is x

Mathematics
2 answers:
Alex17521 [72]3 years ago
6 0

Answer:

4, 9

Step-by-step explanation:

(x-4)(x-9)=0

x-4=0, x-9=0

x=0+4=4

x=0+9=9

Strike441 [17]3 years ago
4 0

Answer:

x either equals to 4 of 9 so you can write it like x=4, 9

Step-by-step explanation:

Start by simplifying each sides of the equation.

x^2-13x+36=0

Then factor the left side of the equation.

(x-4)(x-9)=0

Set factors equal to 0

x-4=0 or x-9=0

x=4 or x=9

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MatroZZZ [7]

Answer:$76

Step-by-step explanation:

JEANS: (5x8)= 40

SHIRTS:(4x6)= 24

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40 + 24 + 12 = 76

3 0
3 years ago
Expand if necessary combine like terms (7+x)(7-x)=
mina [271]

Answer:

49 - x^2

Step-by-step explanation:

(7+x)(7-x)

We know this is the difference of squares

(a-b) (a+b) = a^2 - b^2

7^2 - x^2 = 49-x^2

We can also FOIL

first = 7*7 = 49

Outer: = 7x

Inner: = -7x

Last : -x*x = -x^2

Add them together

49 +7x-7x - x^2

Combine like terms

49-x^2

4 0
3 years ago
How do I do this, I really need some help
meriva
You solve for x and get x<-2 or x>= -1/2 and then graph

4 0
3 years ago
Which step brings you closest to getting the variable alone on one side of the equation
Oliga [24]

Answer:

Adding 5 from both sides then dividing by 7

Step-by-step explanation:

The best way to isolate x is to add 5 to both sides first:

21 = 7x

Then to isolate x by itself divide both sides by 7

x = 3

That would be the value of x and your final answer.

5 0
3 years ago
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