When the first equation is multiplied by -3, the sum of the two equation
and any of the original equations will have the same solution as the
original equations. Hence 5x = -10 and 11x - 9x = -13 will have a
solution of (-2, -1).
Answer:
see explanation
Step-by-step explanation:
The value of the discriminant determines the nature of the roots
• If b² - 4ac > 0 then roots are real and distinct
• If b² - 4ac = 0 then roots are real and equal
• If b² - 4ac < 0 then roots are not real
Here b² - 4ac = 4 > 0
Hence roots are real and distinct
X5, x6, x7, x12.7. It seemed to have been going into a pattern but then stops at the 2680. The pattern would be x5, x6, x7, x8 if the number was 1,680...?
Answer:
85-7-19 or 85-26
Step-by-step explanation: