Question

Only 3rd and 4th sum

Answer 1

(5) p ( x) = 7 x -3

let , 7x -3 = 0

7 x = 0+ 3

x = 3/7

p( x) = 7× 3/ 7 -3

then 7 ana 7 is cancelled

so, 3 - 3 = o

i.e , 3/7 is the zero of p(x)

(ii) p(y) = 9 y

let , 9 y = 0

y = 0/9 = 0

so, 9y is the zero of p(y)

(iii) p( t) = at

let at = 0

t= 0/- a = - 0

so, at is not the zero of p(t)

(4) (i) y^ 40 - y ^ 20

( ii) z ^ 98

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