The correct answer is: [D]: " -3x⁶ − 4x⁵ + 2x² + 8x + 4 " .
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Explanation:
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Given:
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" ( 4x² + 3x + 4) + ( -3x⁶ − 4x⁵ − 2x² + 5x) " ;
Rewrite as:
" ( 4x² + 3x + 4) + 1( -3x⁶ − 4x⁵ − 2x² + 5x) " ;
Note: The "1" is implied — since "1", multiplied by any value, is equal to that same value.
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Note the "distributive property of multiplication" :
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a(b + c) = ab + ac ;
a(b − c) = ab <span>− ac ;
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So, consider the following portion of the expression:
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" + 1 ( -3x⁶ − 4x⁵ − 2x² + 5x) " ;
= (+1 * -3x⁶) − (1 * 4x⁵) − (1 * 2x²) + (1 * 5x)
= − 3x⁶ − 4x⁵ − 2x² + 5x ;
Now, bring down the rest of the expression:
( 4x² + 3x + 4) − 3x⁶ − 4x⁵ − 2x² + 5x ;
= 4x² + 3x + 4 − 3x⁶ − 4x⁵ − 2x² + 5x
Combine the "like terms" ;
+ 4x² − 2x² = + 2x² ;
+ 3x + 5x = 8x ;
And we have:
" -3x⁶ − 4x⁵ + 2x² + 8x + 4 " ;
→ which is: Answer choice: [D]: " -3x⁶ − 4x⁵ + 2x² + 8x + 4 " .
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Answer:
x=3, y=4
Step-by-step explanation:
Answer:
2.32 x 10 put the minus sign at the top with a 11.
Step-by-step explanation:the answer is: move the decimal so there is one non-zero digit to the left of the decimal point. the number of decimal places you move will be the exponent on the 10. the sign of the exponent will depend on the direction you are moving the decimal. hope this helps! ;)
Answer:
2.5
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
It passes the vertical line test or pencil test which means that it only touches one point at a time.
