Question

verify wheather a- [b] a+b or not for a= [-5] and b=7​

Answer 1

Answer:

-5 [7] -5+7

= -35+2

= -33

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Answer 2

formula

(a-b) (a+b) =a²- b²

now,

a= [-5] and b=7

btp,

(-5-7) (-5+7) = (-5) ² - (7) ²

-12 × 2 = 25 - 49

-24 = -24

:. LHS = RHS

(HENCE PROVED)

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