Post-UTME Mathematics 2007 Objective — Question 5
Question 5 of 10 from the Post-UTME Screening (Post-UTME) Mathematics 2007 Objective paper, with the correct answer and a full explanation.
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If x = 924^2 - 76^2. Find the value of x in standard form
- A. 848000
- B. 8.48x10^-3
- C. 8.48x10^5Correct
- D. 4.8x10^5
Explanation
Using difference of squares: (924-76)(924+76) = 848 x 1000 = 848,000 = 8.48x10^5.
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