If a = 2, what is the simplified form of the expression below? (x − a)(x^2 +ax + a^2)
2 answers:
Answer:x^3+2x^2+4x-ax^2-2ax-4a
Step-by-step explanation:
Answer:
x³+8
Step-by-step explanation:
(x − a)(x^2 +ax + a^2)
a=2
Substitute a for 2 in the algebraic expression
(x − 2)(x^2 +2x + 2^2)
(x − 2)(x^2 +2x + 4)
Multiply (x^2 +2x + 4) by (x-2)
x(x^2 +2x + 4)-2(x^2 +2x + 4)
x³+2x²+4x-2x²-4x-8
Collect like terms
x³+2x²-2x²+4x-4x+8
x³+8
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