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28 votes
28 votes
I need help with this math problem please

I need help with this math problem please-example-1
User Steve Tarver
by
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2 Answers

24 votes
24 votes

Answer:

option D

Explanation:


9x^2 + 6x - 17 = 0 , \ where \ a = 9 \ , \ b = 6 \ , c = - 17


x = ( - b \ \pm √(b^2 - 4ac))/(2a) \\\\x = (-6 \pm √(36 - (4 * 9 * -17)))/(2 * 9)\\\\x = (-6 \pm √( 36 + 612))/(18)\\\\x = (-6 \pm √( 648))/(18)\\\\x = (-6 \pm √( 2^3 * 3^4))/(18)\\\\x = (-6 \pm √(2 * 2^2 * 3^ 4 ))/(18)\\\\x = (-6 \pm ( 2 * 9 )√( 2))/(18)\\\\x = (-6 \pm 18√(2))/(18)\\\\x = (-1 \pm 3 √( 2))/(3)

User Chengmin
by
3.0k points
23 votes
23 votes
It’s D

have a great day!

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I need help with this math problem please-example-1
User Ihar Katkavets
by
3.1k points