Solve for x.
1 answer:
Okay so the first thing you want to do is distribute the -3, meaning you’re going to multiple both of the values in the parenthesis by -3. then you’ll combine like terms, meaning -2x and -3x which will equal -5x. then you want to get any values with x by itself, so you’ll add 15 to each side to move it over. Then you need to get x by itself, so you divide each side by negative 5. This leaves your answer as -1
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Answer:
C
Step-by-step explanation:
The expression given is a difference of cubes and factors as
a³ - b³ = (a - b)(a² + ab + b²)
8 = (2
)³ ⇒ a = 2
27 = (3y²)³ ⇒ b = 3y²
Hence 2 factors are
(2 - 3y²) and
((2)² + (2
× 3y²) + (3y²)²)
= (4 + 6
y² + 9
)
Hence the factored form of the expression is C