$x^2+6x-10=30 \ \ /-30\\\\x^2+6x-40=0\\\\a=1, \ b=6, \ c=-40\\\\\Delta=b^2-4ac=6^2-4\cdot1\cdot(-40)=36+160=196\\\\\sqrt{\Delta}=\sqrt{196}=14\\\\x_1=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-6-14}{2}=\boxed{-10}\\\\x_2=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-6+14}{2}=\boxed4$

8 0

2 years ago

24x^2-55x-24=0 what does x equal?

damaskus [11]

The answer is 2.667.

7 0

3 years ago

Which pair of angles are corresponding angles?<br><br> PLEASE HELP ME THIS IS DUE TMR

stiks02 [169]

Answer:

the answer is 3 and 7

Step-by-step explanation:

Angles formed when a transversal line cuts across two straight lines are known as corresponding angles. Corresponding angles are located in the same relative position, an intersection of transversal and two or more straight lines.

3 0

1 year ago