# CBSE Class 8 Answered

**Find b if ( x - 3 ) (x + b ) = xx - 7x + 12**

Asked by sarikalekhi | 30 Aug, 2019, 06:27: PM

Expert Answer

( x - 3 ) (x + b ) = xx - 7x + 12

→( x - 3 ) (x + b ) = x

^{2}- 7x + 12→( x - 3 ) (x + b ) = (x - 4)(x - 3)

→ x + b = x - 4

→ b = - 4

Answered by Yasmeen Khan | 30 Aug, 2019, 06:48: PM

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