How do you combine $(6 x^{2} - 5 x z - 3 z^{2}) - (4 x^{2} + 6 x z - 8 z^{2})$ $(6x^2 - 5xz - 3z^2) - (4x^2 + 6xz - 8z^2)$ ?

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How do you combine $(6 x^{2} - 5 x z - 3 z^{2}) - (4 x^{2} + 6 x z - 8 z^{2})$ $(6x^2 - 5xz - 3z^2) - (4x^2 + 6xz - 8z^2)$ ?

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Answer 1 · 2015-06-03T10:04:51

$(6 x^{2} - 5 x z - 3 z^{2}) - (4 x^{2} + 6 x z - 8 z^{2})$ $(6x^2 - 5xz - 3z^2) - (4x^2 + 6xz - 8z^2)$
We can Group Like Terms to combine the expressions

$6 x^{2} - 5 x z - 3 z^{2} - 4 x^{2} - 6 x z + 8 z^{2}$ $6x^2 - 5xz - 3z^2 - color(red)(4x^2) - color(blue)( 6xz) +color(green)( 8z^2$

$(6 x^{2} - 4 x^{2}) + (- 5 x z - 6 x z) + (- 3 z^{2} + 8 z^{2})$ $(6x^2 - color(red)(4x^2)) + (- 5xz- color(blue)( 6xz)) +(- 3z^2 +color(green)( 8z^2))$

$= 2 x^{2} - 11 x z + 5 z^{2}$ $= 2x^2 - 11xz +5z^2$

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How do you combine $(6 x^{2} - 5 x z - 3 z^{2}) - (4 x^{2} + 6 x z - 8 z^{2})$ $(6x^2 - 5xz - 3z^2) - (4x^2 + 6xz - 8z^2)$ ?

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How do you combine (6x2−5xz−3z2)−(4x2+6xz−8z2)(6x^2 - 5xz - 3z^2) - (4x^2 + 6xz - 8z^2)?

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How do you combine $(6 x^{2} - 5 x z - 3 z^{2}) - (4 x^{2} + 6 x z - 8 z^{2})$ $(6x^2 - 5xz - 3z^2) - (4x^2 + 6xz - 8z^2)$ ?