Question

the zeroes of the polynomial

x^2 + 7x + 10 are

(a) 2 and 5 (b) -2 and 5 (c) -2 and-5 (cl) 2 and -5​

Answer 1

x^2 + 7x +10

x^2 +2x+ 5x +10

x(x +2) 5(x+2)

(x+2) (x+5)

x+2 = 0

x = -2

x +5 = 0

x = -5

correct option c

Answer 2

Answer:

Step-by-step explanation:

For zeros (solutions) of the polynomial, the polynomial must be made as a equation i.e., polynomial = 0

$x^{2}$ + 7x + 10 = 0

$x^{2}$+ 5x + 2x + 10 = 0        As,(7 = 5+2)

x(x+5) + 2(x+5) = 0

(x+2)(x+5)=0

x = -2, -5

The zeros of the polynomials are -2, -5.

The answer is (c).