Question

Find the zeros of the function.

f(x) = x2 + 3x + 2

Answer 1

Do you know how to factorize a quadratic equation?

Answer 2

(x+2)(x+1)

Answer 3

equate the function to zero \[x^2+3x+2 = 0\] \[(x+2)(x+1) = 0\]

Answer 4

the left hand side would become zero only when x = -1 or x = -2

Answer 5

thus the zeroes are -1 and -2

Answer 6

Logic: the product of two numbers is zero only when either of the numbers is zero

Answer 7

oh so all u have to do is factor and slove each factor for x thats so easy thanks

Answer 8

Its been a pleasure :)