Question

Evaluate

10ab - 4a when a = 2 and b = - 1

Answer 1

Answer:

10*2*(-1)-4*2

= -20-8

=-28

Step-by-step explanation:

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Answer 2

$= 10 \: ab - 4 \: a$

$when \: \: a = 2 \: \: and \: \: b = - 1$

$= 10(2)( - 1) - 4(2)$

$= 10( - 2) - 8$

$= - 20 - 8$

$= - 28$