Answer:
(x - 1)(x + 4)
Step-by-step explanation:
What multiplies to (-4) but adds to (3)?
These two values are (4) and (-1). Therefore, these are the values that make up the factored trinomial.
x² + 3x - 4 -----> (x - 1)(x + 4)
You can check your answer by expanding the factors. This is done by multiplying each term within the first parentheses by each term within the second parentheses.
(x - 1)(x + 4) -----> x² - 1x + 4x - 4 -----> x² + 3x - 4
Answer:
1, 2, 17, 34
Step-by-step explanation:
1 x 34 = 34
2 x 17 = 34
Answer:
1. -3x^2 + 13x + 5
2. 10y^2 - 7
Step-by-step explanation:
1. (7 + 4x - 8x^2) - (2 - 9x - 5x^2)
Combine Like Terms —›
(7) - (2) = 5
(4x) - (-9x) —› (4x) + (9x) = 13x
(-8x^2) - (-5x^2) —› (-8x^2) + (5x^2) = -3x^2
-3x^2 + 13x + 5
2. (2y^2 + 5xy - 8) - (5xy -1 - 10y^20)
(2y^2) - (-10y^2) —› (2y^2) + (10y^2) = 10y^2
(5xy) - (5xy) = 0
(-8) - (-1) —› (-8) + 1 = -7
10y^2 - 7
Answer:
Step-by-step explanation:
Answer:
y = 2x + 5
Step-by-step explanation:
y = mx + b : Slope Intercept Form
Our m (slope) does not change, but our b (y-intercept) does.
Step 1: Plug in all numbers except b
y = 2x + b
3 = 2(-1) + b
Solve
5 = b
Step 2: Add slope and intercept into equation
y = 2x + 5
