# Substituting <spa

(A) On substituting x = -3 in the given expression, we get

= (-3)2 + 5(-3) + 4 = 9 -15 + 4 = -2

Hence correct expression is:

= (-3)2 + 5(-3) + 4 = 9 -15 + 4 = -2

(B)

On substituting x = -3 in the given expression, we get

= (-3)2 - 5(-3) + 4 = 9 +15 + 4 = 28

Hence correct expression is:

= (-3)2 - 5(-3) + 4 = 9 +15 + 4 = 28

(C) On substituting x = -3 in the given expression, we get

= (-3)2 + 5(-3) = 9 -15 = -6

Hence correct expression is:

= (-3)2 + 5(-3) = 9 -15 = -6

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