What are the roots of 2x^4-7x^3-2x^2-7x-4? (including imaginary ones)
1 answer:
Answer:
x = 4
Step-by-step explanation:
((((2•(x4))-(7•(x3)))-2x2)-7x)-4 = 0
hope i helped
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Answer:
-40 1/4
Step-by-step explanation:
Answer:
a=5,b=10,c=15
1)(a+b)-5(c+a)
=(5+10)-5(15+5)
=(15)-5(20)
=15-5(20)
=10(20)
=200
2)(10×15)10(5×2)
=150×10×10
=15000
3)(a-b)+(a+b)
(5-10)+(10+5)
(-5)+15
-5+15
=10
4)(2ab-45)+a
=(2×5×10-45)+5
=(100-45)+5
=55+5
=60
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