Hmmm, I got something similar to what Log got...
y−2y2−9−y−7y2+4y−21
=y−2(y+3)(y−3)−y−7y2+4y−21
=y−2(y+3)(y−3)−y−7(y−3)(y+7)
=(y−2)(y+7)(y+3)(y−3)(y+7)−(y−7)(y+3)(y−3)(y+7)(y+3)
=(y−2)(y+7)−(y−7)(y+3)(y+3)(y−3)(y+7)
=9y+7(y+3)(y−3)(y+7)
Hello oliviapow06...!
21+2√3+32−√3
=2(2−√3)(1+2√3)(2−√3)+3(1+2√3)(2−√3)(1+2√3)
=2(2−√3)+3(1+2√3)(2−√3)(1+2√3)
=2(2−√3)+3(1+2√3)3√3−4
=7+4√33√3−4
=37√3+6411
A=64
B√3=37√3
C=11
64+37√3+11
=75+37√3
Great job CubeyThePenguin...!
(5+8÷4×3)×2−7
x=11×2−7
=22−7
=15
120 + 130x = 180 * (x+1-2)
120 + 130x = 180x - 180
300 = 50x
x = 6
You get that x = 6, but there is still one angle that equals 120, so you have a 7 sided polygon.
∫3−2x2−2x+3dx
=∫3−2x2dx−∫3−22xdx+∫3−23dx
=353−5+15
=653
Well done CPhill! Here is another way to do it:
x is the number of members total
8% * 75% * x = 6
0.06x = 6
6x = 600
x = 100
8% * 75 = 0.08 * 75 = 6
100 members
Congrats on graduating!
(Everyone here is very helpful)
Helping others is not only good for them and a good thing to do, but it also makes us happier and healthier too.
Giving also connects us to others, creating stronger communities and helping to build a happier society for everyone. And it's not all about money - we can also give our time, ideas and energy.
Good job ChowMein...!
Here is another way to do it:
1012−972+932−892
=10201−972+932−892
=10201−9409+932−892
=10201−9409+8649−892
=10201−9409+8649−7921
=1520
(ChowMien's way was much easier though)
6t−23+t5=8+(2−t)3
6t⋅15−23⋅15+t5⋅15=8+2−t3⋅15
93t−10=5(−t+10)
93t−10=−5t+50
93t−10+10=−5t+50+10
93t=−5t+60
93t+5t=−5t+60+5t
98t=60
98t98=6098
t=3049
+240 
