SOLUTION: Please show the step by step in the FOIL
3√2 - 5√3)(6√2 - 7√3) =
Algebra.Com
Question 77547: Please show the step by step in the FOIL
3√2 - 5√3)(6√2 - 7√3) =
Answer by ptaylor(2198) (Show Source): You can put this solution on YOUR website!
As you probably know, FOIL is a crutch that is used to remember how to multiply expressions of the form (a+-b)(c+-d).
Lets use (a-b)(c-d) as an example:
Foil is an acronymn that stands for:
First(a*c)
Outer (-a*d)
Inner (-b*c)
Last (b*d)
So we have a*c-a*d-b*c+b*d----ans
Lets look at another example and and you can determine the answer quickly by inspection:
(4-2)(6+4)
First (4*6)
Outer (4*4)
Inner (-2*6)
Last (-2*4)
And we have: 24+16-12-8=40-20=20-----------------ans
Now lets look at your problem:
First and this equals(18)(2)=36
Outer and this equals
Inner and this equals
Last and this equals(35)(3)=105
So we have:
collecting like terms:
-------------ans
Hope this helps---ptaylor
RELATED QUESTIONS
PLEASE PLEASE PLEASE PLEASE PLEASE HELP ME.
√(2)[√(4y) - √(18)]... (answered by stanbon)
Question: √ 80 -2 √ 20 + 3 √ 45
Please answer step by step.... (answered by richwmiller)
1. Simplify the rational expression: Please show work
x2 – 6x – 7
x2 – 1... (answered by checkley71)
Multiply:
(5√[2] + 3)(√[2] - 2√[3])
Please show howyou get the... (answered by sdmmadam@yahoo.com)
solve, step by step √(x+5)+√(2x+3)=9
√=square root
( )=what is... (answered by jim_thompson5910)
Divide and simplify so that there are no radicals in the denominator. show your steps... (answered by rolexramos@ymail.com)
2√(8)-√(50)+3√(6)+5√(32)
Simplify in radical... (answered by Gogonati)
What is the answer to this equation? Can you show me step by step please :... (answered by jim_thompson5910)
Please show step by step. For all x>0 and y>0, the radical expression... (answered by jim_thompson5910)
Evaluate the expression and write in the result of a+bi... (answered by solver91311)