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Anastaziya [24]
3 years ago
5

Explain how to complete the square for an expression of the form x2+bx .

Mathematics
1 answer:
pochemuha3 years ago
6 0

Answer:

To complete the square on an expression of the form x2 + bx, add . Then the expression becomes . Let's look at an example using numbers instead of an area model. We'll complete the square for the binomial .

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Use the cubic model y=3x^3 to find the value of y when x=8
GalinKa [24]

Answer:

Value of y is 1536.

Step-by-step explanation:

We have given an expression y=3x^3

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7 0
4 years ago
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4 0
3 years ago
Andy is solving a quadratic equation using completing the square. If a step in the process results in = (x – 6)2, could the orig
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<span>Yes, the equation can be solved by factoring. Using the given equation, take the square root of both sides. Both 169 and 9 are perfect squares, so the left side becomes plus or minus 13/3, which is rational. Six plus 13/3 is a rational number, and 6 minus 13/3 is also a rational number. If the solutions of a quadratic equation are rational, then the equation is factorable. </span>
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3 years ago
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