Solve the following quadratic equations using quadratic formula.
= 
⇒ 2(x2 + 1) = 5x
⇒ 2x2 + 2 = 5x
⇒ 2x2 – 5x + 2 = 0
(–5)2– 4 (2) (2)
= 25 – 16
= 9
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