Question

Q. Find the
zero
of polynomial 2x² +7x-4
​

Answer 1

2x² +7x-4

→ 2x²+8x-x-4

→ 2x(x+4)-1(x+4)

→ (2x-1) (x+4)

→ 2x-1=0 or x+4=0

→ 2x=1 or x=-4

→ x=1/2 or x=-4

→ x=1/2, -4

So, the zeroes are 1/2 and -4.

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