To convert larger units to smaller units mulitply when the units are smaller you need more pf them to express the same measure. To convert smaller units to larger units, divide. When the units are larger, you need fewer of them to express the same measure.
Answer: Solve the equation for
x
by finding
a
,
b
, and
c
of the quadratic then applying the quadratic formula.
x = −3−√−3+4y2x=−3+√4y−32
Step-by-step explanation:
I'm pretty sure it's B. rotational
After a first glance you can see that 3x^2 - 75 is not a difference of squares in the current form, because for one 3 and 75 are not squares.
So we'll have to see if we can factor something out of both of them. The only number it can be is 3, because the only number besides 3 that goes into 3 is 1.
So is there any number that can multiply by 3 to equal 75?
If you said 25 then you are correct. :p
So then our problem would look like this:
3(x^2 - 25)
Now we have a difference of squares!
Remember a difference of squares can be factored like this!
(a^2 - b^2) = (a - b)(a + b)
3(x - 5)(x + 5)
Is our answer!
