Which value must be added to the expression x^2– 3x to make it a perfect-square trinomial?

Mathematics

1 answer:

liraira [26]2 years ago

3 0

Answer:

$\frac{9}{4}$

Step-by-step explanation:

Given

x² - 3x

add ( half the coefficient of the x- term)²

x² + 2(- $\frac{3}{2}$ )x + (- $\frac{3}{2}$ )²

= (x - $\frac{3}{2}$ )² + $\frac{9}{4}$

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Answer:

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Step-by-step explanation:

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Julie says I added three odd numbers and my answer was 50 explain why Julie cannot be correct

ANTONII [103]

Julie cannot be right. That's because if you add three odd numbers together, you always get an odd number. The number 50 is an Even number.

Let's try adding 3 odd numbers together a couple of times...
3 + 3 + 3 = 9
5 + 1 + 5 = 11
7 + 3 + 5 = 15
We tried 3 examples, we could not get any even number. So, Julie's claim is wrong.