11/10= 1/ 2a +10 + 3/5
(5 $\sqrt{3}$+2)(5 $\sqrt{3}$-2)
√0.00000081 = ____?
5x²-4x-9=0
4x+6=8
4x=12
turn (x-1.5)^2+(y-0.77)^2=0.24 to general form
3
(
2
x
+
5
)
4
−
3(2x+5)+4(x−5)
4/9-1-2
(-3x-2)(x-6)
find the value of sin [ sin inverse 4 by 5 plus sin inverse 7 by 25]