Find the value of ‘x’, 59 (5)3-x
= 510
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Correct Question :- if x(x + 3) + 5 = 59 . find the value of x ?
Solution :-
→ x(x + 3) + 5 = 59
→ x(x + 3) = 59 - 5
→ x(x + 3) = 54
→ x² + 3x = 54
→ x² + 3x - 54 = 0
→ x² + 9x - 6x - 54 = 0
→ x(x + 9) - 6(x + 9) = 0
→ (x + 9)(x - 6) = 0
putting both equal to zero now, we get,
→ x + 9 = 0
→ x = (-9)
or,
→ x - 6 = 0
→ x = 6
Hence, x is equal to (-9) or 6.
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