Question

Hi:) anyone able to explain how to find the value of a? Thank you:)

Answer 1

Answer:

Step-by-step explanation:

The vaulu of A oh! I know that the vaulu of A is Z! Hope this helps! Please give me brailyest!?

Answer 2

Answer:

a=2

Step-by-step explanation:

Please see attached picture for full solution.

Method 1: Substitute x with another number, other than the numbers that you have already tried. Zero is a good number to work with :)

Then, subst. the values of b and c which you have already found into the equation. Then simplify to arrive at your answer.

Method 2: Notice that when you expand the right hand side, only a(x)(${x}^{2}$) can give you a $x^{3}$term. Hence, compare the coefficients of ${x}^{3}$ on both sides. This method is quite safe since the value of a won't be affected in case the value of b and c is wrong.