<h3>I'll teach you how to solve 15x ^2 −4x−4</h3>
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15x ^2 −4x−4
Break the expressions into groups:
(15x^2+6x) + (-10x-4)
Factor out 3x from 15x^2+6x:
3x(5x+2)
Factor out -2 from -10x-4:
-2(5x+2)
3x(5x+2) -2(5x+2)
Factor out common term 5x+2:
(5x+2)(3x-2)
Your Answer Is (5x+2)(3x-2)
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I am putting this into rows. Ex: row one has 0. row two has blank and seven.
1: 0
2: 9 7
3: - 9 6
4: 1 3
5: - 1 2
6: 1
So the answer on top would be 8 1 r 1.
To find the y-intercept plug a zero in for x and solve.
y = -3(0) - 9
y = -9
(0,-9) is how it would be written as an ordered pair.
In your first attatchment, we want to plug in 21 for t and 3 for f. The function was modeled with the tables and flowers per bowl in mind, as t and f respectivly. Doing that gives us:
So she should have 390 flowers.
In the second attatchment, we want to plug in -2 for x, 1 for y and -2 for z. Even though they are letters, they represent some unknown value and in this case, their value is given, so:
