Solve the system of equations 2x-y=1; x+2y=8 graphically and find the coordinates of the points where corresponding lines intersect y-axis.
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Factorize the expression
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$\left ( x + y \right ) \left ( x ^ { 2 } - x y + y ^ { 2 } \right )$
Arrange the expression in the form of factorization..
$\color{#FF6800}{ x } ^ { \color{#FF6800}{ 3 } } \color{#FF6800}{ + } \color{#FF6800}{ y } ^ { \color{#FF6800}{ 3 } }$
$ $ Use the factoring formula, $ a^{3} + b^{3} = \left(a+b\right)\left(a^{2}-ab + b^{2}\right)$
$\left ( \color{#FF6800}{ x } \color{#FF6800}{ + } \color{#FF6800}{ y } \right ) \left ( \color{#FF6800}{ x } ^ { \color{#FF6800}{ 2 } } \color{#FF6800}{ - } \color{#FF6800}{ x } \color{#FF6800}{ y } \color{#FF6800}{ + } \color{#FF6800}{ y } ^ { \color{#FF6800}{ 2 } } \right )$
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Solve: $\left(x+3\right)+$ y If x $2:y=5$
7th-9th grade
Algebra
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