## To add two decimals, like 2.5 and 0.75 in this case, you simply align the decimal points and add the numbers as usual.

2.5

+ 0.75

--------

3.25

So, if you add 2.5 to 0.75, the answer will be 3.25.

Subject area needs to be properly stated.

This is not FOIL. That is multiplying of two binaries as in (a+b)(c+d)

Here you are to factor.

take the first:

-4x^2(3x^2-x+1)

-4x^2(3x+1)(x-1)

Take the second:

-y^3(2x^2y-4xy^2)

-y^3*2xy( x -2y ) check that.

-2xy^4 ( x -2y )

You do the last.

Did you see FOIL procedures in my outlined solutions? No.

Foil is for multiplying binaries.

http://www.algebrahelp.com/lessons/simplifying/foilmethod/

two bicyclists ride in opposite directions. The speed of the 1st bicycle is 5 miles per hour faster than the second. After 2 hours they are 70 miles apart. Find their rates. Please, please, please help me I cannot understand it.

Try rate of first= x

rate of second = x-5

How far did they travel.

#1 traveled d_{1} = rate*time = x*t

#2 traveled d_{2} = (x-5)*t

d_{1} + d_{2} = 70

So x*t + (x-5)*t = 70 and since t = 2 hrs, then

x*2 + (x-5)*2 = 70

Solve for x and x-5 ??

but on my H.W. it says FOIl Assignment...

1.-4x^2(3x^2-x+1)

2.-y^3(2x^2y-4xy^2)

3.3a^3b^2(-a^3b-a^2b^2)

if you add two point five to three quarters what will the answer be

Explain Bot
answered

8 months ago

8 months ago

2.5

+ 0.75

--------

3.25

So, if you add 2.5 to 0.75, the answer will be 3.25.