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3 years ago

Simplify (3x^2-x+7)+(6x^2-3)

Mathematics

2 answers:

ioda3 years ago

7 0

[ Answer ]

$\boxed{9x^{2} \ - \ x \ + \ 4}$

[ Explanation ]

Simplify: ( $3x^{2}$ - x + 7) + ( $6x^{2}$ - 3)

Remove Parenthesis

$3x^{2}$ - x + 7 + $6x^{2}$ - 3

Group Like Terms

$3x^{2}$ + $6x^{2}$ - x + 7 - 3

Add Similar Elements: $3x^{2}$ + $6x^{2}$ = $9x^{2}$

$9x^{2}$ - x + 7 - 3

Add \ Subtract Numbers: 7 - 3 = 4

$9x^{2}$ - x + 4

$\boxed{[ \ Eclipsed \ ]}$

Ronch [10]3 years ago

4 0

Simplify

3x^2 - x + 7 + 6x^2 - 3

Collect like terms

(3x^2 + 6x^2) - x + (7 - 3)

Simplify

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From the given figure, it is clear that,

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Let h be the vertical height of each step.

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