Algebraic Expressions MCQs with Answers

The value of $x^2 - xy + y^2$ when $x = -2$, $y = 2$ is:

• A.$4$
• B.$8$
• C.$12$
• D.$16$

The arithmetic mean (A.M.) between $x - 3$ and $x + 5$ is?

• A.$2x + 2$
• B.$x + 2$
• C.$x - 1$
• D.$x + 1$

Find the value of $a$, if $x + 1$ is a factor of the polynomial $x^3 + ax^2 - x + 2$.

• A.$2$
• B.$-1$
• C.$1$
• D.$-2$

The expression $a^3 + b^3$ is equivalent to _?

• A.$(a + b)^3 - 3ab(a + b)$
• B.$(a - b)^3 + 3ab(a - b)$
• C.$(a + b)^3 + 3ab(a + b)$
• D.$(a - b)^3 - 3ab(a + b)$

Find the value of $a + b + c$ when $ab + bc + ca = -4$ and $a^2 + b^2 + c^2 = 17$.

• A.$3$
• B.$5$
• C.$\pm 3$
• D.$9$

Past Paper MCQ

The sum of two numbers is $10$, and their product is $20$. What is the sum of their reciprocals?

• A.$\frac{1}{2}$
• B.$\frac{1}{4}$
• C.$2$
• D.$\frac{1}{10}$

Find the sum of: $(4x + 7y + 10z)$ and $(-3x + 5y - 7z)$.

• A.$7x + 12y + 3z$
• B.$x + 2y + 17z$
• C.$x + 12y + 3z$
• D.$x + 12y + 17z$

The imaginary part of the complex number $2 - 4i$ is:

• A.$2$
• B.$-4$
• C.$4$
• D.$-2$

If $\frac{b}{a} / \frac{b}{d}$ is equal to _?

• A.$\frac{d}{a}$
• B.$\frac{a}{d}$
• C.$\frac{b^2}{ad}$
• D.$\frac{bd}{a}$

The expression $5x^2 + 2x + 1$ is a ?

• A.Cubic and trinomial
• B.Linear and binomial
• C.Quadratic and trinomial
• D.Quadratic and binomial