Question

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Answer 1

Step-by-step explanation:

Question no 24

Find the zero of the quadratic polynomial 2x2 - 25

Answer

2x2 - 25 = 0 (as we have to find the zero of the quadratic polynomial)

2x2 = 25

2x = √25

2x = 5

x = 5÷2

Now to check

Give the value to x

2(5÷2)2 - 25 = 0

2 (25 ÷4) -25 = 0

25 ÷ 2 -25 = 0 (as 2 divides 4 and we get 2)

0 ÷ 2 = 0 (as negative and positive cut each other)

0 = 0(as zero divides by any thing is always zero)

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