# MCQs Quadratic Equation – 1

First-year (Intermediate) Pre-Engineering mathematics examination preparation.
Pakistan All boards Pre-Engineering Mathematics MCQs Online Test

1. The sum of all four fourth roots of unity is

2. $16\omega^4 + 16 \omega^8$

3. The convert $ax^{2n} + bx^n + c =0 (a\ne 0)$ into quadratic form, the correction substitution

4. The equations involving radical expressions of the variable are called

5. $(-1 + \sqrt{-3})^5 + (-1 – \sqrt{-3})^5$ is equal to

6. To convert $4^{1+x} + 4^{1-x} =10$ into quadratic, the substitution is

7. The sum of all four fourth roots is 16 is

8. Solution set of the equation $x^2 – 4x + 4 = 0$ is

9. The product of all cube roots of $-1$ is

10. The roots that satisfy the radical free equation but not the radical equation are called

11. The product of all four fourth roots of 81 is

12. The sum of all cube roots of 64 is

13. The equation $ax^2 + bx + 9 =0$ will be quadratic if

14. The equation which remains unchanged if $x$ is replaced by $\frac{1}{x}$, then it is called

15. The complex cube roots of the unit are __________ each other.

16. The quadratic formula for solving the equation $ax^2 + bx + c =0$ is $(a\ne 0)$

17. The equation in which variable quantity occurs in the exponent is called

18. The cube roots of $-1$ are

19. The product of all four fourth roots of unity is

20. The cube roots of unity are

An equation of the form $ax^2 + bx + c = 0$ is called a Quadratic Equation, where $a, b,$ and $c$ are all real numbers and $a\ne0$. This generic form of Quadratic Equations is a second-degree equation in variable $x$.

• The equation $ax^2 + bx + 9 =0$ will be quadratic if
• Solution set of the equation $x^2 – 4x + 4 = 0$ is
• The quadratic formula for solving the equation $ax^2 + bx + c =0$ is $(a\ne 0)$
• The convert $ax^{2n} + bx^n + c =0 (a\ne 0)$ into quadratic form, the correction substitution
• The equation in which variable quantity occurs in the exponent is called
• To convert $4^{1+x} + 4^{1-x} =10$ into quadratic, the substitution is
• The equation which remains unchanged if $x$ is replaced by $\frac{1}{x}$, then it is called
• The equations involving radical expressions of the variable are called
• The roots that satisfy the radical free equation but not the radical equation are called
• The cube roots of unity are
• The cube roots of $-1$ are
• The sum of all cube roots of 64 is
• The product of all cube roots of $-1$ is
• $16\omega^4 + 16 \omega^8$
• $(-1 + \sqrt{-3})^5 + (-1 – \sqrt{-3})^5$ is equal to
• The sum of all four fourth roots of unity is
• The product of all four fourth roots of unity is
• The sum of all four fourth roots is 16 is
• The product of all four fourth roots of 81 is
• The complex cube roots of the unit are _______ each other

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