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Solve the quadratic equation by any means. Identify the method and complete the explanation of why you chose it. Irrational answers may be left in radical form.

5x2 + 16x + 3 = 0

Part a: factoring
Completing the swuares

Taking the square roots
Which one


Part b:

Why:
There are not many factors to check
It is not factorable
B is = to zero

User Mtraut
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1 Answer

8 votes

Answer:

Factoring:
x = -(1)/(5), -3

Explanation:

A) You can factor the expression
5x^2 + 16x + 3 into
(5x+1)(x+3).

5x + 1 = 0 and x + 3 = 0


x = -(1)/(5), -3

B) I would use factoring because you can factor this expression, and you don't have to use completing the square

User Peter Lucas
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7.5k points