What is the greatest common factor??

Mathematics

2 answers:

natita [175]2 years ago

5 0

Answer:

Step-by-step explanation:

the answer is d 3x^2y^2

Mamont248 [21]2 years ago

3 0

Answer:

Step-by-step explanation:

3 is the only option that goes into 39 and 6. If you have 2x's in the first set and 4 in the second, you can't take out 4 if you only have 2 in the first set. Same goes for the Y's. If you have 2 y's and try to take out 3. It won't work. So, your GCF is option D.

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Solve the equation.

Nutka1998 [239]

Answer:

Step-by-step explanation:

In this technique, if we have to factorise an expression like ax2+bx+c, we need to think of 2 numbers such that:

N1⋅N2=a⋅c=1⋅−12=−12

AND

N1+N2=b=−1

After trying out a few numbers we get N1=3 and N2=−4

3⋅−4=−12, and 3+(−4)=−1

x2−x−12=x2−4x+3x−12

x(x−4)+3(x−4)=0

(x+3)(x−4)=0

Now we equate the factors to zero.

x+3=0,x=−3

x−4=0,x=4

3 0

2 years ago

In the diagram, the radius of the outer circle is

JulijaS [17]

the value of x is 8 cm.

<u>Step-by-step explanation:</u>

Correct Question : In the diagram, the radius of the outer circle is 2x cm and the radius of the inside circle is 6 cm. The area of the shaded region is 220π cm2. What is the value of x? Enter your answer in the box.

We have ,

the area of a circle = πr²

the outer circle area = $\pi(2x)^2 =4\pi x^2$