Algebramedium · Past Paper
What is the product of (x + a)(x + b)?
Ax^2 + ab
Bx^2 + (a+b)x + ab
Cx^2 + ax + b
Dx^2 + abx + (a+b)
✓ Correct Answer: B — x^2 + (a+b)x + ab
Standard FOIL expansion of two binomials.
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