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If X = 4, Evaluate: 5x2 + 4x - Mathematics

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Question

If x = 4, evaluate:

5x2 + 4x

Sum

Solution

5x2 + 4x

= (5 × 4 × 4) + 4 (4)

= 80 + 16

= 96

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Chapter 21: Framing Algebraic Expressions (Including Evaluation) - Exercise 21

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Selina Mathematics [English] Class 6
Chapter 21 Framing Algebraic Expressions (Including Evaluation)
Exercise 21 | Q 6.2
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