Answer:
1
Step-by-step explanation:
you can tell just divide
Answer:
B is the answer.
Step-by-step explanation:
Use power rule: (x^a)^b = x^ab.
The 1st expression is the only one that reproduces the terms being added.
1) b.
2) a.
3) I'm not sure, but I'm leaning towards c.
27x^2-81x-9x+27 In this case, just in your mind multiply 27 (coefficient of x^2) by the constant value 27(the end value of the quadratic trinomial). Then find factors that give you the value -90 when you add and 729 (27*27) when you multiply.
Factorise the values
27x( x-3)-9(x-3)
Which will give you
(27x-9)(x-3)
