factorize -
a^2-4-3a
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a²-4-3a
first, we have to arrange it in correct series.
→a²-3a-4
By splitting middle term,
→a²-4a+a-4
→a(a-4)+1(a-4)
→(a-4)(a+1) {REQUIRED FACTORS}
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shanaya1437:
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please refer to my second question of chemistry
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