What is expand (0.05x+0.06y=38,40)(x+y=69000) ?

The solution to expand (0.05x+0.06y=38,40)(x+y=69000) is 0.05x^2+0.05xy=69000

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expand (0.05x+0.06y=38,40)(x+y=69000)

expand

(0.05 x + 0.06 y = 38, 40) (x + y = 69000)

0.05 x^{2} + 0.05 x y = 69000

Solution steps

(0.05 x + 0.06 y = 38, 40) (x + y = 69000)

= (0.05 x + 38 \cdot 40 \cdot 0.06 =, y) (x + 69000 = y)

Apply FOIL method:

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

a = 0.05 x, b = 0.06 y = 38, 40, c = x, d = y = 69000

0.05 xx + 0.05 x y = 69000 + 0.06 y = 38, 40 x + 0.06 y = 38, 40 y = 69000

Expand

0.05 xx + 0.05 x y : 0.05 x^{2} + 0.05 x y

0.05 x^{2} + 0.05 x y = 69000

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What is expand (0.05x+0.06y=38,40)(x+y=69000) ?
The solution to expand (0.05x+0.06y=38,40)(x+y=69000) is 0.05x^2+0.05xy=69000