BECE Mathematics 2025 Objective — Question 66

Question 66 of 120 from the Basic Education Certificate Examination (Junior WAEC) (BECE) Mathematics 2025 Objective paper, with the correct answer and a full explanation.

Factorise 63x²y⁴ − 99x³y².

A. 3x²y(7y³ + 11x²)
B. 3xy²(7x² − 11y²)
C. 9x²y²(7x + 11y²)
D. 9x²y²(7y² − 11x)Correct

Explanation

HCF = 9x²y²; 63x²y⁴ ÷ 9x²y² = 7y², 99x³y² ÷ 9x²y² = 11x. Option text partly small/blurred in the scan; D is the only option consistent with the HCF.

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