x2 - 2x = 63 x2 - 2x - 63 = 0 Find two factors of -63 that add to -2 (including the sign). These are (-9,7) so, x2 - 9x + 7x - 63 = 0 x*(x-9) + 7*(x-9) = 0 (x-9)*(x+7) = 0 and so x - 9 or x = -7
All the time
You have to put your heart into it!
The answer depends on what the question is!
-144
sin4x=(4sinxcosx)(1-2sin^2x)
All the time
You have to put your heart into it!
The answer depends on what the question is!
72 minus the root of squared minus equals 72 but you have to be smart to know that the minimum circumference s 56 there you go
-144
sin4x=(4sinxcosx)(1-2sin^2x)
Two plus 3 minus 2 times 1 squared plus 4 times 16 squared minus 4 times 2 is equal to 1,019.
Tan^2
Energy equals mass times the speed of light squared.
81 x 2 - 16 = 146
a2 + 62 = 122 a2 + 62 - 62 = 122 - 62 a2 = 144 - 36 a2 = 108 taking the square root of each side, we get a equal plus or minus the square root of 108, or plus or minus 6 times the square root of 3.
18