Answer:
105
Step-by-step explanation:
we are asked to determine three equivalent ratios for fractions. in this case, we just have to multiply a number each for the numerator and the denominator. we take, 2,3, and 4 in this case.
4/3: 8/6, 12/9, 16/1212/14: 24/28, 36/42, 48/566/9: 12/18, 18/27, 24/36
Ok so basically, when you say multiply A by C, that is simplifying.
And in this case, you are factorising in this question. You turn back into brackets basically.
We have:
72x^2 - 32
x^2 = x squared
factorising means finding the factor of.
(Forget the x squared for the moment to make life easier)
Factors of 72:
1 and 72
2 and 36
3 and 24
4 and 18
6 and 12
8 and 9
(9 and 8 = it repeats so we stop there)
And then factors of 32:
1 and 32
2 and 16
4 and 8
(8 and 4 = repeats so we stop there)
Notice how we see 8 twice in both factors of 72 and 32, this means that we use 8 as the main number we are going to multiply each of the 2 numbers in the brackets by. This is because it is the biggest common factor - this is what we have!
This is what we would have:
8(9-4)
BUT, that is not the answer!
Keep in mind we have the x squared too
But, 32 doesn’t have it?!!
It would be:
8(9x^2 - 4)
Do you get it??
Try to simplify it! Does it equal to 72x^2 - 32?
(And I am so very sorry for the long explanation, once you get the hang of it, it makes sense. Hope my explanation helped) :)
80-45+5+2=42
Your answer is 42
Answer:
y=-5x-4
Step-by-step explanation:
y=mx+b
-5=-5m+b
-5=-1+b
b=-4
y=-5x-4
:D
