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3 years ago

Solve x4 - 17x2 + 16 = 0. Let u = 17x2 x2 -17x2

Mathematics

2 answers:

Nuetrik [128]3 years ago

6 0

Answer:

x = -1, 1, -4, 4.

Step-by-step explanation:

x^4 - 17x^2 + 16 = 0.

Let u = x^2, then:

u^2 - 17u + 16 = 0

(u - 1)(u - 16) = 0

u = 1, 16.

So x = +/- √u.

x = -1, 1, -4, 4.

mart [117]3 years ago

4 0

Answer:

The answer is x^2 i just took the test and got it right.

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ANSWER

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EXPLANATION

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We want to subtract these two polynomials.

$P-G = 8 {w}^{4} - 3{w}^{2} {z}^{2} + z^{4} - (- 3 {w}^{4} + 2 {w}^{2} {z}^{2} + 5z^{4} )$

Expand the right hand side to obtain:

$P-G = 8 {w}^{4} - 3{w}^{2} {z}^{2} + z^{4} + 3 {w}^{4} - 2 {w}^{2} {z}^{2} - 5z^{4}$

Group the similar terms:

$P-G = 8 {w}^{4} + 3 {w}^{4}- 3{w}^{2} {z}^{2} - 2 {w}^{2} {z}^{2} - 5z^{4} + z^{4}$

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$P-G = 11{w}^{4} - 5 {w}^{2} {z}^{2} - 4z^{4}$

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3 years ago

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11111nata11111 [884]

Answer:

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Step-by-step explanation:

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