Make bottom number same
ok, so remember
(a-b)(a+b)=a²+b²
so
to get from (y-x) to (y²-x²), multiply 2nd fraction by (y+x)
so multiply 2nd fraction by (y+x)/(y+x)

=

=
Tripple then tripple means times 3 times 3
x times 3 times 3=x times 9
x time 9=729
divide both sides by 9
x=81
the numbe s 81
<u><em>Its 41....VERY EASY</em></u>
Let me show you:
4*4= 16 because of the exponent (2)
4 times 4 =16
Then add by 25..
Which gives u 41..
Hope this helps....
A: 8,250
B: 22
Step-by-step explanation:
A: 15 * 250 = 3,750 + 4,500 = 8,250
B: 10,000 - 4,500 = 5,500/250 = 22. 22 * 250 + 4,500 = 10,000
Answer:
n = 10
Step-by-step explanation:
The triangles are equal by SSS theorem, therefore the 2 angles given with a variable must be equal.