3 years ago

Which of the following constants can be added to x2 - 10x to form a perfect square trinomial?

Mathematics

1 answer:

Nadusha1986 [10]3 years ago

6 0

X=5
is the answer/................

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Angles 8 and 15 are supplementary.

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Lady_Fox [76]

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Step-by-step explanation:

This deals with factoring multi-variable polynomials.

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3 years ago

Subtract 5x^2 – 2x – 5 from – 2x^2 - 5x - 7

user100 [1]

Answer:

$-7x^{2} -3x-2$

Step-by-step explanation:

$(-2x^2-5x-7) - (5x^2-2x-5)\\\\-2x^2 - 5x^2 = -7 x^2\\-5x - -2x = -3x\\-7 - -5 = -2 \\Result: -7x^2-3x-2$

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3 years ago

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Write an expression to represent the sum of three consecutive even numbers. Let C represent the first number in the series

Anna [14]

Let, the first number = C
second number will be = C + 2 ['cause next will be odd so we can't include that]
Third number = C + 4

Now, their sum would be:
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In short, Your Answer would be 3C + 6

Hope this helps!

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3 years ago

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