Question

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Answer 1

Step-by-step explanation:

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Answer 2

$\Large \fbox \red {Question \: :}$

Find the value of expression.

ab - 4b² + 2a, when a = 4 and b = - 2

$\Large \fbox \red {Answer \: :}$

Given :

• a = 4
• b = - 2

Put the values of a and b in the expression :

ab - 4b² + 2a

(4×2) - 4×(-2)² + 2×4

8 - 4 × 4 + 8

8 - 16 + 8

16 - 16

= 0

$\implies$ So, the value of the expression is 0.

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