Which of these statements hold true?
i.) 4(x−5)=4x−5
ii.) x(3x+2)=3x2+2
iii.) 2x2+4(2x)+7=2x2+8x+7 [4 MARKS]
Concept: 1 Mark
Application: 1 Mark each
If the statements are true, then LHS should be equal to RHS
i.) LHS=4(x−5)=(4×x)−(4×5)=4x−20≠4x−5≠RHS
ii.) LHS=x(3x+2)=3x2+2x≠3x2+2≠RHS
iii.) LHS=2x2+4(2x)+7=4x2+8x+7=2x2+8x+7=RHS