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3 years ago

Multiply 4xy^3(3×^2y)^2

1 answer:

Alex3 years ago

5 0

$\bf 4xy^3(3x^2y)^2\impliedby \textit{first off, distribute the exponent}
\\\\\\
4xy^3~(3^2x^{2\cdot 2}y^2)\implies 4xy^3~(9x^4y^2)\implies 4\cdot 9xx^4y^2y^3
\\\\\\
36x^{1+4}y^{2+3}\implies 36x^5y^5$

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:P HELLLP what is (13x20)5+6 = ___ - 1/3.

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Answer: 1304.7

Step-by-step explanation: just took test

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2 years ago

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Simplify 5(x + 3) - 9x+4. O A. 14x+7 O B.-4x+19 O C. 14x+19 D. -4x+7

Julli [10]

Answer:

Step-by-step explanation:

distribute

5x+15-9x+4

combine like terms

-4x+19

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3 years ago

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Which equation represents the line that passes through the points (-1,-2) and (3,10)

anyanavicka [17]

Answer:

(10+2)/(3+1)= 12/4= 3

y +2= 3(x+1)

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2 years ago

Solve for x. 2x² +21x-61 = (x+7)² Please

Ymorist [56]

Answer:

$x = \frac{-7 +\sqrt{489} }{2}$

$x = \frac{-7 - \sqrt{489} }{2}$

Step-by-step explanation:

2x² +21x-61 = (x+7)²

expand

2x² + 21x - 61 = x² + 14x +49

move everything to one side

x² + 7x - 12 = 0

use quadratic formula

$x = \frac{-b +- \sqrt{b^{2}-4ac } }{2a}$

plug in the values

$x = \frac{-7 +- \sqrt{7^{2}-4(1)(-110) } }{2(1)}$

solve

$x = \frac{-7 +- \sqrt{49-4(1)(-110) } }{2}$

$x = \frac{-7 +- \sqrt{49 + 440 } }{2}$

$x = \frac{-7 +- \sqrt{489} }{2}$

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1 year ago

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You are given the system of equations to solve by the elimination method, which is an INCORRECT step that will NOT produce a

SCORPION-xisa [38]

Answer: multiply x by 2 in the first equation and subtract the second equation

Step-by-step explanation:

To solve a system of linear equations by elimination method , our first step is to make its (either x or y) coefficient same.

For that we multiply a number to both sides of the equation not to only one term.

So by checking all the given options it is pretty clear that the last option is not applicable for elimination method because in this 2 is multiplied to only one term, which proceeds to loose the balance of the equation.

Thus , an INCORRECT step that will NOT produce a system with the same solution is "multiply x by 2 in the first equation and subtract the second equation ".

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3 years ago