Question

Help me explain this sign diagram! (look at the attachment below) PLEASE NO SPAM I will mark you brainliest.

This picture is from my textbook. I understand step 1 to step 2 - how to draw up the table and put in the zeros. But I cannot understand the part when it wrote 'put in + and - signs'.

I also don't understand how to work out the products of the values of the expression from the sign diagram!


Anyone who knows and understand this, PLEASE help me! I will mark you brainliest :)

Answer 1

there in the first row of x+3 before -3 is negative so the sign is - in the row of -3 -3+3=3-3=0 then before 4 + sign cause the integer is positive in 4 theres x+3 both 4 and x+3 are positive integer so its + sign and further no integers so is+ sign.