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ICSE Class 10 Answered

  1. x^2 + 7x  + 12 = 0
Asked by teacher_yourschool | 09 Jun, 2020, 01:13: PM
Expert Answer
x+ 7x + 12 = 0
→ x+ 3x + 4x + 12 = 0
→ x (x + 3) + 4(x + 3) = 0
 (x + 3)(x + 4) = 0
→ (x + 3) = 0 or (x + 4) = 0
→ x = -3 or x = -4


Answered by Yasmeen Khan | 09 Jun, 2020, 02:10: PM

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