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Questions and Answers
What is the sum of $3x + 4y$ and $2x - 5y$?
What is the sum of $3x + 4y$ and $2x - 5y$?
- $5x - y$
- $5x - y$
- $5x - y$
- $5x - y$
Which of the following is the correct expansion of $(a + b)^2$?
Which of the following is the correct expansion of $(a + b)^2$?
- $a^2 + 2ab + b^2$ (correct)
- $a^2 - 2ab + b^2$
- $a^2 - 2ab - b^2$
- $a^2 + b^2$
Simplify the expression $5(3x - 2) - 4(2x + 1)$.
Simplify the expression $5(3x - 2) - 4(2x + 1)$.
- $15x - 10 - 8x + 4$
- $15x + 10 - 8x - 4$
- $15x + 10 - 8x + 4$
- $15x - 10 - 8x - 4$ (correct)
