Question

Please give right answers

Answer 1

Answer:

10

Step-by-step explanation:

according to the identity, a³ + b³= ( a + b ) ( a²- ab + b² )

let a be 5.67 and let b be 4.33

so when we put the identity and the equation together we get

∴ 5.67 x 5.67 x 5.67 +  4.33 x 4.33 x 4.33 ÷ 5.67 x 5.67 - 5.67 x 4.33 + 4.33 x 4.33 =

( a + b ) ( a²- ab + b² ) ÷ ( a² - ab + b² )

∴ ( a² - ab + b² ) gets cancelled

and,

a + b =  5.67 + 4.33

= 10

hope it helps!!

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