3 years ago

Factor the trinomial x^2 + 6x - 27

Mathematics

2 answers:

krek1111 [17]3 years ago

5 0

If you factor the trinomial using the AC method the answer would be

(x-3)(x+9)

IceJOKER [234]3 years ago

5 0

Answer: (x + 9)(x - 3)

Step-by-step explanation: Since the constant term is negative, it can be factored as a positive times a negative. The factors of -27 that add to +6 are +9 and -3. The answer therefore is (x + 9)(x - 3).

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3 years ago

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noname [10]

Answer:

$8.51x10^{-3}cm$

Step-by-step explanation:

In order to add or subtract numbers in scientific notation, the powers of ten must have the same exponent. In this caes the diameter of an average human body cell is a power of -4 and the diameter of a plant cell is a power of -3. In order to add them, we can move the decimal over for the body cell diameter:

$5.1x10^{-4}=0.51x10^{-3}$