Linear equations, identities, polynomials and basic algebra.
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Q1 · Algebra · EASY
If 3x + 7 = 22, what is the value of x?
Q2 · Algebra · MEDIUM
Expand the expression (x + 4)(x + 3) using algebraic identities.
Q3 · Algebra · MEDIUM
A man is 3 times as old as his son. After 12 years, his age will be twice that of his son. What is the present age of the son?
Q4 · Algebra · MEDIUM
Which of the following is the value of (a + b)² - (a - b)²?
Q5 · Algebra · HARD
If p(x) = x³ - 6x² + 11x - 6, find the value of p(1).