Question

If x = 2/3 and x = -3 are the roots of the quadratic equation ax2 + 7x + b = 0
then find the values of a and b.

I
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Answer 1

Answer:

a=-7/2, b=0

Step-by-step explanation:

make equations and solve them

Answer 2

Answer:

a4/9++14/3+b=0

9a-21+b=0

4a+42+3b=0

27a-63+3b=0

-23a+105=0

a=105/23

9×105/23-21+b=0

b=21-9×105/23

b= -462/23