1.

Evaluate : b²y-9b²y+2b²y-5b²y​

Answer»

Given \: algebraic \: expression :

b^{2}y - 9b^{2}y + 2b^{2}y - 5b^{2}y

= (1-9+2-5)b^{2}y

= ( -8-3)b^{2}y

= -11b^{2}y

THEREFORE.,

\red{ b^{2}y - 9b^{2}y + 2b^{2}y - 5b^{2}y}

\green { = -11b^{2}y}

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