1) you can expand the brackets, simplify, set the equation = 0 and then do a double bracket factorisation.
2)
therefore Josh's solution is wrong asx = 7 and x= -1
Answer:
range = 6
Step-by-step explanation:
Highest number - lowest number
9 - 3
= 6
<span>x(x-3)(x+5) is your answer</span>
Answer:
90^4 = 65.61% chance of doing that
Step-by-step explanation: