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A quadratic equation is shown below:

9x2 - 36x + 36 = 0

Part A: Describe the solution(s) to the equation by just determining the discriminant. Show your work. (3 points)

Part B: Solve 2x2 - 9x + 7 = 0 using an appropriate method. Show the steps of your work and explain why you chose the method used.(4 points)

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I hope this helps you
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MissPhiladelphia
For part A:
9xΒ² - 36x + 36 = 0Β 
9(xΒ² - 4x + 4) = 0Β 
9(x-2)(x-2) = 0Β 
Radicand = Discriminant = 36Β² - 4(9)(36) = 0Β 
there is 1 real zero that repeats itself)

zero is x=2.Β 

Use factoring. Factors of 7 are 1 and 7Β 
2xΒ²-9x+7 = 0

(2x-7)(x-1) = 0Β 
2x-7 = 0 Β  Β  Β  Β  Β  Β  Β (x-1)=0Β 
2x = 7x=1Β 
x = 7/2Β 
Your solutions are x = 1 and x = 7/2Β 

I hope my answers helped you

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