(m+11n)^2
=(m+11n)(m+11n)
=m^2+11mn+11mn+121n^2
=m^2+22mn×121n^2
For Example;
use FOIL: (a+b)(a+b)
First. a^2
Outside. ab
Inside. ab
Last. b^2
Answer:
(x - 1)(x + 1)(x + 3).
Step-by-step explanation:
x^3 + 3x^2 - x - 3 Factor by grouping:
= x^2(x + 3) - 1(x + 3) x+3 is common .
= (x^2 - 1)(x + 3) x^2 - 1 is the difference of 2 squares.
= (x - 1)(x + 1)(x + 3).
Original price: $40.00
Saved amount: $8.00
Answer:
How much is the discount?
=$70
What is the final sale price?=$210
Step-by-step explanation:
$280 =100%
$x =25%
$280 x 25%=7000/100=<u>70</u>
<u>280-70=210</u>
