Factoring

Mathematics

2 answers:

spin [16.1K]3 years ago

6 0

25x^2 -81

Write the number in the exponential form with an exponent of 2

5^2 x^2 -81

Write the number in the exponential form with an exponent of 2

5^2 x^2 -9^2

Multiply the terms with equal exponents by multiplying their bases

(5x)^2 -9^2

Using a^2-b^2=(a-b)(a+b), factor the expression

(5x-9)× (5x+9)

Answer: (5x-9)×(5x+9)

PLEASE GIVE ME BRAINLIEST ANSWER

miss Akunina [59]3 years ago

3 0

Answer:

( 5x-9) (5x+9)

Step-by-step explanation:

25 x^2 - 81

Rewriting

(5x)^2 -9^2

This is the difference of squares

a^2 -b^2 = ( a-b)(a+b)

(5x)^2 -9^2 = ( 5x-9) (5x+9)

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Factor out the polynomial 12m^2-m-35

Darina [25.2K]

Hey there!!

Okay here is how you solve this... first you look for factors of 12 and 35... for example...

12m² - m - 35
<u>(4m - 7)(3m + 5)</u><u /> <---- This is the factored form!<u>

</u>m = 7/4 and -5/3
<u />

I hope this helps! ^__^

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2 years ago

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21,4,9,19,25,16,27,30,33,15,31 Minimum: Quartile1: Quartile2: Quartile3: Maximum:

bazaltina [42]

Answer:

Minimum:4 Quartile 1:15.5 Quartile 2:21 Quartile 3:26 Maximum:33

Step-by-step explanation:

Order out the numbers least to greatest then find the middle number, the middle number is the median or quartile 2, then you find the middle of the first half, that number would be the 1st quartile, then find the number in the middle of the second half, that is your 3rd quartile, the min is the smallest number max is the largest.