Question

solve using quadratic formula :
answer of Q19. is 3,3
answer of Q20. is 2±√15
answer of Q21. (¡) is 2b/a , b/a
answer of Q21. (¡¡) is -a , a+1
answer of Q21. (¡¡¡) is a-b/2 , a+b/5

Answer 1

Hey,

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