Question

2. If a =3 and b= -2, find the values of:
(1) a² +66
(ii) ab + ba
Prove that.​

Answer 1

Answer:

1)3²+66=75

ii)3.-2+-2.3

-6+-6

-12

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Step-by-step explanation:

Answer 2

Answer:

$(i) \: a {}^{2} + 66$

$solution \: = \\ a = 3 \: and \: b \: = - 2 \\ then \\ 3 {}^{2} + 66 \\ = 69 {}^{2}$

$(ii) \: ab \: + \: ba$

$solution \: = \\ a \: = 3 \: and \: b \: = \: - 2 \\ then \: \\ 3 - 2 + ( - 2) + 3 \\ = 4$

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