3 years ago

Solve x4 - 34x2 = -225

Mathematics

1 answer:

RSB [31]3 years ago

6 0

Answer:

x= -5,5 and -3,3

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Step-by-step explanation:

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What is the value of x

9966 [12]

ANSWER

x=27

EXPLANATION

The two triangles are similar so the corresponding sides are equal.

$\frac{x}{x +1 8} = \frac{39}{39 + 26}$

$\frac{x}{x +1 8} = \frac{39}{65}$

Cross multiply to get;

$65x = 39(x + 18)$

Expand:

65x=39x+702

Group similar terms:

65x-39x=702

Simplify

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3 0

3 years ago

How to solve this problem?

cluponka [151]

have you tried 42 because it's a 90 degree triangle and 30+18+42 equals 90

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