Let y = 7x^2 + 20x + 8 Find the zeros of the function using the quadratic formula.

balafiavatv

balafiavatv

Answered question

2022-08-08

Let y = 7 x 2 + 20 x + 8
Find the zeros of the function using the quadratic formula.

Answer & Explanation

Jaiden Gould

Jaiden Gould

Beginner2022-08-09Added 11 answers

Your answer starts with the formula y = a x 2 + b x + c
In your problem,
a = 7
b = 20
c = 8
The quadratic formula is x = b ± ( b 2 4 a c ) 2 a
Now plug in the a, b, and c values to your quadraticformula. You should get two answers. (Make sure tostore all of the decimal places for the answers otherwise you willhave roundoff error when you plug in the answer to your originalformula.) Take both answers and plug them into your original y = 7 x 2 + 20 x + 8 formula. Determine which one makes y =0. That value from the quadratic formula is your answer.

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