What is expand (pi+2)(sqrt(2)-1) ?

The solution to expand (pi+2)(sqrt(2)-1) is sqrt(2)pi-pi+2sqrt(2)-2

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expand (pi+2)(sqrt(2)-1)

expand

(π + 2) (2 - 1)

2 π - π + 22 - 2

Solution steps

(π + 2) (2 - 1)

Apply FOIL method:

(a + b) (c + d) = a c + a d + b c + b d

a = π, b = 2, c = 2, d = - 1

= π 2 + π (- 1) + 22 + 2 (- 1)

Apply minus-plus rules

+ (- a) = - a

= 2 π - 1 π + 22 - 2 \cdot 1

Simplify

2 π - 1 π + 22 - 2 \cdot 1 : 2 π - π + 22 - 2

= 2 π - π + 22 - 2

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What is expand (pi+2)(sqrt(2)-1) ?
The solution to expand (pi+2)(sqrt(2)-1) is sqrt(2)pi-pi+2sqrt(2)-2