Answer:
Step-by-step explanation:
(a). 
= x ( 2x + 1 ) = <em>2x² + x</em>
(b). 
= 2( 2x + 1 )( 5x + 3 ) = <em>20x² + 22x + 6</em>
(c). 
= 20x² + 22x + 6 - ( 2x² + x ) =
( 20x² - 2x² ) + ( 22x - x ) + 6 =
<em>18x² + 21x + 6</em>
Answer:
Step-by-step explanation:
Start off by explaining that u know this(don't use these exact word though :A composite number is a positive integer that can be formed by multiplying two smaller positive integers Equivalently. A prime number is a natural number greater than 1 that is not a product of two smaller natural numbers.... I couldn't really see the whole page so this is what i could get for u.... Good luck
I believe there are 210 blue counters in the bag im not sure but this is how i got this.
a whole will =1
1-.3=.7
there are 90 blue counters in .3 and there are 2.33333(repeat) in .7
so i multipled 2.3333(repeat) by 90. 2.3333(repeat)*90=210
-hope i got it right and that this helps-
p.s. i know it was confusing i have a very different way of thinking, lol.
Answer: x = 2
Steps: x + 3= 8x - 11
Subtract three form both sides: x + 3 - 3 = 8x - 11 - 3
Simplify: x = 8x - 14
Subtract 8x from both sides: x - 8x = 8x - 14 - 8x
Simplify: -7x = -14
Divide both sides by negative seven: -7x ÷ -7 = -14 ÷ -7
Simplify: x = 2
They are actually equal. 4/5 is equal to 3/4, if you do the math.
