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!
Answer:
350 miles
Step-by-step explanation:
if max drives 105 miles per week
you should first find out how many miles max drives per day.
there are 7 days in a week so :
105 ÷ 7 = 15
so for 30 days max will drive 15 × 30 = 350 miles
1 day : 15 miles
30 days : 350 miles
Answer:300
Step-by-step explanation:
50+5x=?
Literally just multiply it by 50 by 5 which would be 250 plus what she already had in her account 250+50= 300
Answer:
1.5×2.5/2=1.875.
Step-by-step explanation:
We all know that area of triangle is base into hight upon 2.
