Question

y = (x + 4)(x - 1) what is the x intercept

Answer 1

(−4,0), (1,0)

There hope this helped

Answer 2

y=(x+4)(x-1)

x intercept the y coordinate is 0

0=(x+4)(x-1)

Since brackets are multiplying and =0 one bracket needs to add up to 0
either x+4=0 or x-1=0

x+4=0
x=-4

x-1=0
x=1

So coordinates are
(-4,0). AND (1,0)