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Find roots of 5m² + 18m + 16 = 0 
Question

Find roots of 5m² + 18m + 16 = 0 

A.

85- \frac{8}{5}  and 4 ​

B.

85 \frac{8}{5}  and 4​

C.

85\frac{8}{5}  and 2 ​

D.

85- \frac{8}{5} and -2​

Correct option is D

Given:

Quadratic equation: 5m2+18m+16=0m^{2}+18m+16=0​​

Solution:

5m2+18m+16=(5m+8)(m+2)=05m^{2}+18m+16=(5m+8)(m+2)=0​​
 m=85, 2=-\dfrac{8}{5},\ -2​​

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