Question

one of the zero of X square +7x+12
is
a)3
b)-4
c)4
d)7​

Answer 1

Answer:

it's ans is b)-4

Step-by-step explanation:

simply use quadratic formula

so you get (x+3)(x+4)=0 so two roots are -3 and -4 as -3 is not notted so -4 is the answer

Answer 2

Answer:

Step-by-step explanation:

xsq.+4x+3x+12

=>x[x+4]+3[x+4]

=>[x+4][x+3]

=>x=-4,-3

=> so 1 xero is -4

HOPE IT HELPS YOU