(x+2)^2=(x+2)(x+2)
remember
25/5=5 aka
(5^2)/5=5
so
(x^2)/x=x
((x+2)^2)/(x+2)=x+2
hi
You will only progress by trying yourself.
so I do the first, you do the rest.
You have to remplace x by 3
so first expression is : x²-4x
by remplacing "x" by it's value (3) we have :
(3)² -4(3) = 9 -12 = -3
Have a try for the rest and ask in comment if you dont understand.
Answer:
10.82
Step-by-step explanation:
X is less than or equal to -3
explanation
first, i added 6x to both sides
next, i subtracted 25 from both sides
then i divided by 14 and got -3