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Factorize ax – by – ay + bx
- A. (a – b)(x – y)
- B. (a + b)(y – x)
- C. (a – b)(y – x)
- D. (a + b)(x – y)
QUICK ANSWER…
D
SOLUTION…
ax – by – ay + bx
rearranging, we have:
ax – ay + bx – by
= a(x – y) + b(x – y)
= (a + b)(x – y)
Now for the right answer to the above question:
- Option A is incorrect.
- Option B is incorrect.
- C is incorrect.
- D is the correct answer.
QUICK TIPS…
You may please note these/this:
- All we did was rearrange, factor out common terms and solve for the answer.
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/ culled from 2015 JAMB-UTME mathematics past question 38 /
