(2x^2-5x)(4x^2-12x+10) = <span>8x^4 - 44x^3 + 80x^2 - 50x
So, the answer is option C.</span>
It’s quite easy here.
A sum means addition.
The term “of a number” means youre dealing with a variable.
10 is an Interger. Put those two together and you end up with:
x+10
^^ Thats your answer. Hope this was helpful.
Answer:
y² - (K- 2)y + 2k +1 = 0
equal roots means D=0
D= b^2 - 4ac
a=1, b= (k-2), c= 2k+1
so,
(k-2)^2 - 4(1)(2k+1) = 0
=> k^2 +4 - 8k -4 = 0
=> k^2 -8k = 0
=> k^2 = 8k
=> k= 8k/k
=> k = 8
Therefore the answer is k= 8
Hope it helps........
Is there like a story or problem or something
The lines mean that they are congruent! so the perimeter is 25*4 = 100
