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Multiply the polynomials (8x^2+6x+8)(6x-5) Apex

2 Answers

2 votes

Answer: 48x^3 -4x^2 + 18x -40

Step-by-step explanation: multiply 8x^2 by 6x and -5 ➡ 48x^3 - 40x^2

multiply 6x by 6x and -5 ➡ 36x^2 -30x

multiply 8 by 6x and -5 ➡ 48x -40

now add the like terms

48x^3 - 40x^2 + 36x^2 -30x + 48x -40 ➡48x^3 -4x^2 + 18x -40

User NeDark
by
5.7k points
2 votes

Answer:


48x^3+76x^2+78x+40

Explanation:


(8x^2+6x+8)(6x+5)\\\\48x^3+36x^2+48x+40x^2+30x+40

Now that we have distributed the values, we must now combine like terms


48x^3+36x^2+48x+40x^2+30x+40\\\\48x^3+(36x^2+40x^2)+(48x+30x)+40\\\\48x^3+76x^2+78x+40

User Zorro
by
5.7k points
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