0
Still curious? Ask our experts.
Chat with our AI personalities
Coach
Vivi
LaoAdd your answer:
Earn +20 pts
What does cos squared x - Sin squared x equal?
2 x cosine squared x -1 which also equals cos (2x)
What is x squared plus 2x-8 equals 0?
That factors to (x - 2)(x + 4) x = 2, -4
What is x squared plus 2 x squared?
x^2+2x^2=3x^2
What is 2x squared divided by x squared?
2
How do you factor 2x squared minus 5x minus 7 equals 0?
(2x - 7)(x + 1)
What does cos squared x - Sin squared x equal?
2 x cosine squared x -1 which also equals cos (2x)
How do you factor x squared -2x-3 equals 0?
x squared -2x-3 equals 0 is the same as (x + 1)(x - 3) = 0
What are the points of intersection of the parabolas y equals x squared -2x plus 4 and y equals 2x squared -4x plus 4?
If: y = x^2 -2x +4 and y = 2x^2 -4x +4 Then: 2x^2 -4x +4 = x^2 -2x +4 Transposing terms: x^2 -2x = 0 Factorizing: (x-2)(x+0) => x = 2 or x = 0 Therefore by substitution points of intersect are at: (2, 4) and (0, 4)
Solve x squared plus 2x - 13 equals 2?
(x - 3)(x + 5)
How do you factor 2x squared -12x plus 16 equals 0?
2(x - 2)(x - 4)
What is x squared plus 2x-8 equals 0?
That factors to (x - 2)(x + 4) x = 2, -4
What is the answer to 2x squared -2x -40 equals 0 is it x equals 5 and x equals -4?
Yes it is and well done.
Does x times x equal 2x?
No, x + x equals 2x. x times x equals x2. (x times x equals x squared.)
What is the solution of X squared - 2X - 2 equals 0?
1 +/- the square root of 3
What is x squared plus x squared?
x^2+x^2=2x^2
How do you solve 2X plus 5 squared equals 7?
2x + 52 = 7 2x + 25 = 7 2x = 7 - 25 2x = -18 x = -18/2 x = -9
Justify each step which are conjecture 2x 2 equals 50?
If you mean: 2x squared = 50 Divide both sides by 2: x squared = 25 Square root both sides: x = 5
