Question

$if \: a = 2 \: and \: b = 3$
$find \: the \: value \: of \:$
(I) a+b
(II)a²+ab
(III)ab-a²
(IV)2a-3b
(V)5a²-2b​

Answer 1

Answer:

if a = 2 and b = 3

i. a .+ b

= 2 + 3

= 5

ii. a² + ab

.= 2² + 2 × 3

= 4 + 6

= 10

iii. ab - a²

= 2 × 3 - 2²

= 6 - 4

= 2

iv. 2a - 3b

= 2 × 2 - 3 × 3

= 4 - 9

= -5

v. 5a² - 2b

= 5 × 2² - 2 × 3

= 5 × 4 - 6

= 20 - 6

= 14

Answer 2

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