The number is x
it is negative
the square is 28 more than 3 times itself
x²=28+3x
minus (28+3x)
x²-3x-28=0
factor
(x-7)(x+4)=0
set to zero
x-7=0
x=7
this is not the answer because we were told the number was negative
x+4=0
x=-4
correct
the number is -4
test
(-4)²=28+3(-4)
16=28-12
16=16
check
the number is -4
Answer:
so first you add something and then subtract and then divide then you er butf then youcan see toplod ej
Step-by-step explanation:
I hope u got ur answer ;)
if u have any more doubt ask me
Answer:
A=0,-2 1/2
Step-by-step explanation:
