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dem82 [27]
2 years ago
6

Factor 5a^2-30a+45, and 2x^5+x^4-2x-1.

Mathematics
1 answer:
Mrrafil [7]2 years ago
6 0

Step-by-step explanation:

{5a}^{2}  - 30a + 45

5( {a}^{2}  - 6a + 9)

5(a-3)(a-3)

5(a-3)^2

{2x}^{5}  +  {x}^{4}  - 2x - 1

X^4(2x+1) - (2x+1)

(x^4-1)(2x+1)

(x^2-1)(x^2+1)(2x+1)

(x-1)(x-1)(x^2+1)(2x+1)

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Step-by-step explanation:

Here's my work:

500g Cl2 l   1mol Cl2  l  2 mol NaCl   l  58.5 g NaCl

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= 823.94  - the rounding can be a little off

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Step-by-step explanation:

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