Expanding multiplies out brackets: every term in one factor times every term in the other, then like terms combined. (x + 1)³ expands to x³ + 3x² + 3x + 1 — the coefficients are a row of Pascal's triangle.
דוגמה עובדת: expand (x+1)^3
נסה את שלך.
יותר בפנים. Algebra
Linear equationsQuadratic equationsSystems of equationsInequalitiesFactoringSimplifying expressionsFunctions and graphsExponential and logarithmic equationsPolynomial equationsAbsolute value