SOLUTION: simplfy (8-√7)(1+√9)
Algebra.Com
Question 411198: simplfy (8-√7)(1+√9)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
simplfy (8-√7)(1+√9)
----
Use FOIL to get:
F: 8
O:8*sqrt(9) = 8*3 = 24
I: -sqrt(7)*1 = -sqrt(7)
L: -sqrt(7)*sqrt(9) = -3sqrt(7)
------
Combine these to get:
32-4sqrt(7)
=================
Cheers,
Stan H.
============
RELATED QUESTIONS
Solve the following.
1. 9∜7 + 8∜7 - 3∜7
2. 1/2 √2 + 1/2... (answered by lynnlo)
5√(2)+6√(8)-7√(45) (answered by RAY100)
Evaluate √(7/3+√(7/9+√(7/3+√(7/9+⋯)) ) ) (answered by greenestamps,ikleyn)
Simplify √ 45
√ 16/25
√ 8*√ 9/20
√ 10/32
√... (answered by MathLover1)
PLEASE PLEASE PLEASE PLEASE PLEASE HELP ME.
√(2)[√(4y) - √(18)]... (answered by stanbon)
Please help me solve this radical equation:
√x+9 + √x-7 = 8... (answered by KMST)
1. Simplify the rational expression: Please show work
x2 – 6x – 7
x2 – 1... (answered by checkley71)
Rational and Radical Expressions
1. Simplify the rational expression:
x2 – 6x – 7
(answered by gladley)
√(x-1) -3=... (answered by Yemi)
Simplify... (answered by EMStelley)