Riddhi917 Riddhi917

02-11-2016
Mathematics

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If a = b + 2, then (b - a)⁴ = ?

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itsbribro itsbribro

02-11-2016

use substitution.

anywhere you see "a" , than you would plug in b + 2 in for it so....

(b - (b + 2)^4

now take the negative sign and distribute it "+"

so b - b is 0, than 0 - (-2) is -2.

so what is (-2)^4 ????? it would become positive 16

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