Lemme try k
(x-3)(x+2)
=x^2-3x+2x-6
x^-x-6
x^2-x-30 = 0
(x-6)(x+5) = 0
x-6 =0
x=6
x+5 =0
x=-5
x=6 or x=-5
great I failed
Answer:
(x+1)² = 14
a = 1, b = 14
Step-by-step explanation:
Given the equation, x² + 2x = 13
We are to use the completing the square method to express in the form
(x + a)² = b
x² + 2x = 13
Add the square of half of the coefficient of x to both sides
Coefficient of x = 2
Half of the coefficient of x = 2/2
Square of the result = (2/2)²
Square of the result = 1²
Add (1/2)² to both sides
x² + 2x + (1)² = 13 + (1)²
(x+1)² = 13 + 1
(x+1)² = 14
Compare with (x+a)² = b
a = 1 and b = 14
Answer:
I belive the answer is 54 if not so sorry!
Step-by-step explanation:
The answer is 28a and you are welcome for the answer and thanks for the points