factorise the following : a square + 13a + 42
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a²+13a+42 ••••• By Middle Term Splitting •••••••••••••• a²+7a+6a+42 ==>a(a+7)+6(a+7) ==>(a+6)(a+7)
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= a^2+13a+42
= a^2+6a+7a+42
= a(a+6)+7(a+6)
= (a+7)(a+6)
✔✔✔✔✔
_________________
HOPE IT HELPS ☺☺☺
HERE'S THE ANSWER ✌
________________
= a^2+13a+42
= a^2+6a+7a+42
= a(a+6)+7(a+6)
= (a+7)(a+6)
✔✔✔✔✔
_________________
HOPE IT HELPS ☺☺☺
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