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nadya68 [22]
3 years ago
15

Solve x2 – 2x – 15 = 0 using the zero product property.

Mathematics
1 answer:
Burka [1]3 years ago
6 0
Hello,

x²-2x-15=0
<==> x²+3x-5x-15=0
<==>x(x+3)-5(x+3)=0
<==>(x+3)(x-5)=0
<==> x=-3 or x=5

sol={-3,5}
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<h2>Answer:    slope = - ¹³/₁₇  </h2>

Step-by-step explanation:    

       The question gives us two points, (9,-6) and (-8,7), from which we can find the slope and later the equation of the line.

<u>Finding the Slope  </u>

The slope of the line (m) = (y₂ - y₁) ÷ (x₂ - x₁)    

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<em><u>Checking my answer:</u></em>

Finding the Equation

<em>We can now use the point-slope form (y - y₁) = m(x - x₁)) to write the equation for this line:</em>

<em>                                  ⇒  </em><em>y - (-6) =  - ¹³/₁₇ (x - 9)</em>

<em>                                          </em>

       

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