(-x+ 4)(3x² + 3x + 5)

Mathematics

2 answers:

ArbitrLikvidat [17]2 years ago

8 0

Answer:

-3x^3 + 9x^2 + 7x + 20

Step-by-step explanation:

(3x^2 × (-x +4)) + (3x × (-x +4)) + (5 × (-x +4))=

=-3x^3 + 9x^2 + 7x + 20

raketka [301]2 years ago

5 0

Answer:

I got -3x^3 + 9x^2 + 7x+ 20

Step-by-step explanation:

Frist do distrubtive property then combine all like terms.

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Gre4nikov [31]

Answer:

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2 years ago

Evaluate the expression 11C4.

kicyunya [14]

The correct answer is: 330

Explanation:

The formula for combination is given as follows:

$^nC_r = \frac{n!}{r! (n-r)!}$ --- (1)

Where n = 11

r = 4

Plug in the values in equation (1) and calculate:

$^nC_r = \frac{n!}{r! (n-r)!} \\ ^{11}C_{4} = \frac{11!}{4! (11-4)!} \\ ^{11}C_{4} = \frac{11*10*9*8*(7!)}{4! (7)!} \\ ^{11}C_{4} = \frac{11*10*9*8}{4!} \\ ^{11}C_{4} = \frac{11*10*9*8}{4*3*2*1} \\ ^{11}C_{4} = 330 \\$