alleryax + ay + bx + by என்பதைக் குழுவாக்கினால் கிடைக்கும் காரணிப்படுத்தல்
A(a + b)(x + y)
B(a - b)(x + y)
C(a + b)(x - y)
D(a + x)(b + y)
Answer & Solution
Correct answer: A. (a + b)(x + y)
a(x + y) + b(x + y) எனக் குழுவாக்கி, பின்னர் பொதுவான காரணியான (x + y) என்பதை வெளியே எடுக்கவும்.
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