Question

if X takes value 4, find the value of the three expression :5+ (2×-4)+(3x/6)​

Answer 1

Given: 2(a2+ab)+3−ab

⇒2a2+2ab+3−ab

⇒2a2+2ab−ab+3

⇒2a2+ab+3

⇒2(5)2+(5)(−3)+3 [Putting a=5,b=−3]

⇒2×25−15+3

⇒50−15+3

⇒38.

Answer 2

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༒︎ Step by step Explan ༒︎

Given: 2(a2+ab)+3−ab

⇒2a2+2ab+3−ab

⇒2a2+2ab−ab+3

⇒2a2+ab+3

⇒2(5)2+(5)(−3)+3   [Putting a=5,b=−3]

⇒2×25−15+3

⇒50−15+3

⇒38.