Question

Given that a=3 and b= -7, evaluate,
(I) 2a-b,
(ii) a² + b²

Please solve fast ​

Answer 1

Answer:

a=3 and b=-7

i) 2 (3)-(-7)

=6+7

=13

ii)3^2+(-7)^2

=9+49

=58

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Step-by-step explanation:

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Answer 2

Step-by-step explanation:

= (i) 2a-b=>2(3)-(-7)=>6+7=13

= (ii) a²+b²=>3² +(-7)²=>9-49= -40

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