What is expand (3x+2y=6,)(9x+6y=20) ?

The solution to expand (3x+2y=6,)(9x+6y=20) is 27x^2+18xy=20

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expand (3x+2y=6,)(9x+6y=20)

expand

(3 x + 2 y = 6,) (9 x + 6 y = 20)

27 x^{2} + 18 x y = 20

Solution steps

(3 x + 2 y = 6,) (9 x + 6 y = 20)

= (3 x + 2 \cdot 6 =, y) (9 x + 6 \cdot 20 = y)

Apply FOIL method:

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

a = 3 x, b = 2 y = 6,, c = 9 x, d = 6 y = 20

3 x \cdot 9 x + 3 x \cdot 6 y = 20 + 2 y = 6, 9 x + 2 y = 6, 6 y = 20

3 \cdot 9 xx + 3 \cdot 6 x y = 20 + 2 y = 6, 9 x + 2 y = 6, 6 y = 20

Expand

3 \cdot 9 xx + 3 \cdot 6 x y : 27 x^{2} + 18 x y

27 x^{2} + 18 x y = 20

(1 + x + x^{2})^{7}

\frac{( x ^{2} + 2 x + 3 )}{( x - 1 ) ^{2}}

sin (- \frac{π}{4}) sin (- \frac{π}{12})

\frac{3 + x}{x ( x + 1 )}

\frac{5 x ^{2} - 25 x + 20}{- 3 x ^{2} + 24 x - 48}

What is expand (3x+2y=6,)(9x+6y=20) ?
The solution to expand (3x+2y=6,)(9x+6y=20) is 27x^2+18xy=20