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LOOK AT THE PICTURE ATTACHED FOR THE QUESTION GIVING OUT EXTRA POINTS IF THE ANSWER IS RIGHT!!!!

LOOK AT THE PICTURE ATTACHED FOR THE QUESTION GIVING OUT EXTRA POINTS IF THE ANSWER IS RIGHT class=

Sagot :

Answer:

[tex]-4x^5y^3-3x^4y^3+x^5y^2[/tex]

Step-by-step explanation:

You need to know this indice rule:

If you multiply two terms with the same base, then add their powers and multiply their coefficients.

[tex](4x^2y+3xy-x^2)(-x^3y^2)[/tex] : Here we have to multiply each term in the first pair of brackets by the term in the second pair of brackets.

So we can split this into parts:

[tex](4x^2y)(-x^3y^2) +(3xy)(-x^3y^2)+(-x^2)(-x^3y^2)[/tex]

Now using the rule above expand the brackets:

[tex](4x^2y)(-x^3y^2) = -4x^5y^3[/tex] : Notice how [tex]y * y^2 =y^3[/tex] since [tex]y[/tex] [tex]= y^1[/tex] so [tex]1 + 2 = 3[/tex].

[tex](3xy)(-x^3y^2) = -3x^4y^3[/tex]

[tex](-x^2)(-x^3y^2)[/tex] [tex]= x^5y^2[/tex] : Be careful with negatives, two negatives make a positive.

Now add them all together:

[tex]-4x^5y^3-3x^4y^3+x^5y^2[/tex]

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