Question

Find the sum and product of the following quadratic equations:
1) x2 + 7x + 12 = 0
2) 9x2 + 24x + 35 = 0
3) (x + 3)2 + 4x + 7 = 0
4) 2x2 – 8x,+ 3 = 0
5) x2 + 213x – 1 = 0
6) px2 + 2ax + r = 0
7) - 7x2 + 8x - 9 = 0
8) mx2 + 2mnx + (mn)2 = 0
please answer those questions
quickly.
I will definitely follow and Mark as the brainlist
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Answer 1

Answer:

I)

Step-by-step explanation:

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Answer 2

Answer:

7)p+q=-b/a=8/7

pq=c/a=-9/-7=9/7

let p,q be the roots then p×q=c/a and p+q=-b/a

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