0
Add your answer:
Earn +20 pts
Factor x2 plus 8x plus 15?
x2 + 8x + 15 = (x + 3)(x + 5)
X2 plus 8x plus 16 equals?
(x + 4)(x +4) or (x + 4)squared
What are the factors of x2 plus 8x - 20?
x2 + 8x - 20 = (x - 2)(x + 10).
What number should you add to complete the square x2 plus 8x equals -3?
You ignore the constant part (-3 in this case), calculate half of the coefficient of the linear part (8, in this case), and square this half. (1/2 of 8 is 4; the square of 4 is 16). This gives you the perfect square x2 + 8x + 16. To get something equivalent to the original expression, you must both add and subtract 16, and include the term which I previously ignored (-3): x2 + 8x + 16 - 16 - 3, which you can write as (x2 + 8x + 16) - 16 - 3. The part within parentheses is the perfect square.
What is the factorization of the polynomial x2 plus 8x plus 15?
x² + 8x + 15 = (x + 5)(x + 3)
What binomial is a factor of this trinomial x2 plus 8x plus 16?
x + 4
How do you simplify x2 -x-20 over x2 plus 8x plus 16?
(x2 - x - 20) / (x2 + 8x + 16) = [(x - 5)(x + 4)] / (x + 4)2 = (x - 5) / (x + 4)
X2 plus 8x plus 9 equals -7?
x2+8x+9 = -7 x2+8x+9+7 = 0 x2+8x+16 = 0 (x+4)(x+4) = 0 Therefore: x = -4 and also x = -4 (they both have equal roots)
X2 - 8x plus 16 equals 0?
x*x - 8x +16 = 0 x*x = 8x + 16 x - 16 = _/8x x_/-4 = 2 x = 2
X2 plus 8x-6 equals 0?
x2 + 8x - 6 = 0 x2 + 8x + 16 = 22 (x + 4)2 = 22 x + 4 = ± √22 x = -4 ± √22
The quadratic formula x2 plus 8x - 5 equals 0?
x2 + 8x - 5 = 0 ∴ x2 + 8x + 16 = 21 ∴ (x + 4)2 = 21 ∴ x + 4 = ± √21 ∴ x = -4 ± √21
Factor the polynomial x2 - 8x plus 16?
(x-4)(x-4)
How many solutions are there for the equation x2 plus 16 equals 8x?
2 this Domo
Factor x2 plus 8x plus 15?
x2 + 8x + 15 = (x + 3)(x + 5)
How do you factor x2 plus 8x plus 15?
x2 + 8x + 15 = (x + 3) (x + 5).
Explain how to solve x2 plus 8x -2 equals 0 by completing a square?
x2 + 8x - 2 = 0 => x2 + 8x = 2 => x2 + 8x + 16 = 2 + 16 = 18 => (x + 4)2 = 18 => x + 4 = +or- sqrt(18) = +or- 3*sqrt(2) so x = -4 +or- 3*sqrt(2)
X2 plus 8x plus 16 equals?
(x + 4)(x +4) or (x + 4)squared
