x2 + 2x - 3 = (x + 3)(x - 1)
x times x = x2 (it's like 6 times 6. it would be 62. not 6 times 2. 2x means x times 2)
x2-2x-15 = (x+3)(x-5) when factored
x2+2x-15 = (x+5)(x-3) when factored
Simplifying x2 + -2x + -63 Reorder the terms: -63 + -2x + x2 Factor a trinomial. (-7 + -1x)(9 + -1x) Final result: (-7 + -1x)(9 + -1x)
x2+2x-15
Derivation of x2 or 2x is 2.
x2+2x-63 = (x-7)(x+9) when factored
If you have an equation of x2 plus x2, it is the same as saying 2 times x plus 2 times x. This can be written as 2x + 2x or x2 + x2. It is the same, then, as 4x. For example, if x equals 5: 2(5) + 2(5) = 10 + 10 = 20. 20 also equals 4(5).
What do you want to convert it to? x2 + y2 = 2x If you want to solve for y: x2 + y2 = 2x ∴ y2 = 2x - x2 ∴ y = (2x - x2)1/2 If you want to solve for x: x2 + y2 = 2x ∴ x2 - 2x = -y2 ∴ x2 - 2x + 1 = 1 - y2 ∴ (x - 1)2 = 1 - y2 ∴ x - 1 = ±(1 - y2)1/2 ∴ x = 1 ± (1 - y2)1/2
No, x + x equals 2x. x times x equals x2. (x times x equals x squared.)
2x = x2 + 4x - 3 x2 + 2x - 3 = 0 (x - 1)(x - 2) = 0
The antiderivative of 2x is x2.
x2 + 2x - 3 = (x + 3)(x - 1)
x3 - x2 + 2x = x*(x2 - x + 2) which cannot be factored further.
negative four: x2 - 2x + 5 = x2 - 2x + 5 - 4 = x2 - 2x + 1 = (x - 1)2
x times x = x2 (it's like 6 times 6. it would be 62. not 6 times 2. 2x means x times 2)