CBSE Class 8 Answered
Find b if ( x - 3 ) (x + b ) = xx - 7x + 12
Asked by sarikalekhi | 30 Aug, 2019, 18:27: PM
Expert Answer
( x - 3 ) (x + b ) = xx - 7x + 12
→( x - 3 ) (x + b ) = x2 - 7x + 12
→( x - 3 ) (x + b ) = (x - 4)(x - 3)
→ x + b = x - 4
→ b = - 4
Answered by Yasmeen Khan | 30 Aug, 2019, 18:48: PM
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