0
Still curious? Ask our experts.
Chat with our AI personalities
CoachSuccess isn't just about winning—it's about vision, patience, and playing the long game.
Chat with Coach
MaxineI respect you enough to keep it real.
Chat with Maxine
RafaThere's no fun in playing it safe. Why not try something a little unhinged?
Chat with RafaAdd your answer:
Earn +20 ptsQ: X2 8x 9 equals -7
Write your answer...
Submit
Still have questions?
Continue Learning about Math & Arithmetic
X2 plus 8x plus 9 equals -7?
x2+8x+9 = -7 x2+8x+9+7 = 0 x2+8x+16 = 0 (x+4)(x+4) = 0 Therefore: x = -4 and also x = -4 (they both have equal roots)
What are the possible values of k in the line y equals kx -2 which is tangent to the curve y equals x squared -8x plus 7?
The possible values for k are -2 and -14 because in order for the line to be tangent to the curve the discriminant must be equal to 0 as follows:- -2x-2 = x2-8x+7 => 6-x2-9 = 0 -14x-2 = x2-8x+7 => -6-x2-9 = 0 Discriminant: 62-4*-1*-9 = 0
X2 plus 8x-9 equals 0?
x2 + 8x - 9 = 0(x + 9) (x - 1) = 0(x + 9) = 0 . . . . . x = -9(x - 1) = 0 . . . . . x = 1
How do you solve x2 plus 6x equals -9?
2x+6x=-9 => 8x=-9=> x=-8/9
8x-2 equals -9 plus 7x?
8x-2 = -9+7x8x-7x = -9+2x=-7
Trending Questions
What is diameter of 60 inch circle?
What is the percentage increase from 38000 to 39000?
What is 20 percent off of 230 dollars?
What is the least common denominator of 2 over 5?
How much is a 1945 Wheat penny worth?
Where is ldr in ewb 5.12?
How do a person take over a dormant account and how step by step are they processed?
How many Dots are in a cup of Dippin Dots?
How did the world come in existence by god?
What is the doublet function?
How many pyramids altogether?
What is 478 divided by 18 in simplest form?
How many times does 51 go into 280?
What is the number for 10 to the power of 10?
What is a line or edge that deviates from straightness in a smooth continuous way called?
What is the denominator in a unit?
What is 50.009 rounded to the nearest tenth?
How do you Addams fraction with a denaminator of 10 and 100?
Is France bigger than Chile?
What is the abbreviation for November 23?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.