Answer:
steps below
Step-by-step explanation:
x⁶ - 7x³ - 8 = (x⁶ + x³) - (8x³ + 8)
= x³ (x³+1)-8(x³+1)
= (x³ - 2³)(x³ + 1)
= (x-2)(x²+2x+4)(x+1)(x²-x+1)
(x-2)(x²+2x+4)(x+1)(x²-x+1) = 0
<u>x= -1 or x = 2</u> ... roots
or x²+2x+4=0 or x²-x+1=0
x²+2x+4=0
x = (-2±√4-16)/2 = <u>-1 ± √3 i</u> ... complex roots
x²-x+1=0
x = (1±√1-4)/2 = <u>1/2 ± (√3)i / 2</u> ... complex roots
<u />
b) P(x) = x⁶ - 7x³ - 8
= <u>(x-2)(x²+2x+4)(x+1)(x²-x+1)</u>
= (x+1)(x-2)(x-(-1 + √3 i))(x-(-1 - √3 i)(x-(1/2 + (√3)i / 2))(x-(1/2 - (√3)i / 2))
Answer:
The answer is 25064.
Step-by-step explanation:
<u>There is a mistake in the question so the correct is below:</u>
What is 6 tenths 20 thousandths 4 ones and 50 hundreds.
Now, to solve it:
So, we arrange it in sequence:
20 thousandths 50 hundreds 6 tenths and 4 ones.
Now,
20 thousandths = 20 <u>000</u>
50 hundreds = 50 <u>00</u>
6 tenths = 6 <u>0</u>
4 ones = 4
Thus, 20 thousandths 50 hundreds 6 tenths and 4 ones is :
20,000 + 5000 + 60 + 4.
= 25064.
Therefore, the answer is 25064.
Answer:
Sensory
Step-by-step explanation:
