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viktelen [127]
2 years ago
14

Find the value of a² + b² , when a+ b = 8 and ab = 12

Mathematics
2 answers:
mezya [45]2 years ago
4 0

Answer:

Step-by-step explanation:

6+2=8

6*2=12

6^{2} +2^{2}= 36+4=40

nadezda [96]2 years ago
3 0

Answer:

Here,

<h3>a2 +b2=(a+b)</h3><h3>a {}^{2}  + b {}^{2}  = (a + b) {}^{2}  - 2abso, </h3>

(8) {}^{2}  - 2 \times 12

64 - 2 \times 12

40

Step-by-step explanation:

So,

Therefore,

a {}^{2}  + b {}^{2}  = 40

I'm not sure if this is correct or not, but this the way I learned..

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According to the fundamental theorem of algebra, which polynomial function has exactly 6 roots? f (x) = 5 x superscript 4 baseli
MariettaO [177]

The polynomial with 6 roots is the one of degree 6, so the correct option is:

f(x) = 7x^6 + 3x^2 + 12

<h3>Which polynomial function has 6 roots?</h3>

You need to remember that if p(x) is a polynomial of degree N, then it has N roots (such that some of these N roots may be equal or not).

Then we just need to find the polynomial of degree 6. (Remember that the degree represents the maximum exponent of the polynomial).

In this case, the only one of degree 6 is:

f(x) = 7x^6 + 3x^2 + 12

Which is the last option.

If you want to learn more about polynomials, you can read:

brainly.com/question/4142886

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