5 under root 5 x square + 20 X + 3 under root 5
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Q] 5√5 x^ 2 + 20 x + 3√5
ANS]
↪ 5 √5 x ^ 2 + 20 x + 3 √5
=5√5x^2 + 15 x + 5 x + 3 √5
= √5 x [ 5 x + 3√5 ] + 1 [ 5 x + 3 √5]
= [ 5 x + 3 √5 ] [ √5 x + 1 ]
x = - 3 √5 / 5. OR. x = -1 /√5
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