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Suppose 3 is a root of the quadratic equation ax² – 2x – 21 = 0. Find the value of a and hence find the other root of the equation.​

Suppose 3 is a root of the quadratic equation ax² – 2x – 21 = 0. Find the value of a and hence find the other root of the equation.​
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Suppose 3 is a root of the quadratic equation ax² – 2x – 21 = 0. Find the value of a and hence find the other

root of the equation.​

asked
User Frakon
by
8.0k points

1 Answer

7 votes

Answer:

a = 3

the other root = -7/3

Suppose 3 is a root of the quadratic equation ax² – 2x – 21 = 0. Find the value of-example-1
Suppose 3 is a root of the quadratic equation ax² – 2x – 21 = 0. Find the value of-example-2
answered
User Jason Grife
by
8.3k points
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