Question

Find the zero of polynomial 2 x square + 7 x— 4

Answer 1

To find the zero of 2x
2
+7x−4 is same as solving the equation 2x
2
+7x−4=0
⇒2x
2
+8x−x−4=0
⇒2x(x+4)−1(x+4)=0
⇒(2x−1)(x+4)=0
⇒x=
2
1
​
,−4


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