(ISC)2 CCSP Certified Cloud Security Professional Official Practice Tests

(ISC)2 CCSP Certified Cloud Security Professional Official Practice Tests

» » Matematika 9x^2 - 15x in form of (3x - a)^2 - b​

Matematika 9x^2 - 15x in form of (3x - a)^2 - b​

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9x^2 - 15x in form of (3x - a)^2 - b​

Jawaban:

(3x-5/2)²-25/4

Penjelasan dengan langkah-langkah:

Notice that:

9x²-15x= (3x-a)²-b

9x²-15x= 9x²-6ax+a²-b

-15= -6a

a= 5/2

0= (5/2)²-b

0= 25/4-b

b= 25/4

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