mjchey
Answered

Westonci.ca is the Q&A platform that connects you with experts who provide accurate and detailed answers. Get detailed and accurate answers to your questions from a community of experts on our comprehensive Q&A platform. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals.

What are the solutions to the equation x2 + 6 = 87?   A. –9 and 9   B. –10 and 10   C. –6 and 6   D. The equation has no solutions.


Sagot :

Lilith
[tex] x^2 + 6 = 87 \ \ | -87\\ \\x^2 + 6 -87 = 0 \\ \\ x^2 -81 = 0 \\ \\(x+9)(x-9)=0 \\ \\ x+9 =0 \ \ \vee \ \ x-9 =0 \\ \\ x= -9 \ \ \vee \ \ x= 9 \\ \\\\Answer : \ A.) \ \ -9 \ \ and \ \ 9 [/tex]


[tex]a^2 - b^ 2 =(a-b)(a+b)[/tex]


We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. Get the answers you need at Westonci.ca. Stay informed with our latest expert advice.