4x^2 -28x + 49=0
- move -49 to the other side
x^2-7x+49/4=0
- take out the 4 because you cannot complete the square with a coefficient in front of x^2
(x^2-7x +(7/2)^2) + 49/4 - (7/2)^2 = 0
- complete the square
4((x-7/2)^2)= 0
- bring the 4 back and you’re done.
hope this helped :)
To solve we have to write 12x as 2x+10x
<span><span>x2</span>+2x+10x+20</span>
taking x and 10 as a common
x(x+2)+10(x+2)
now (x+2) is common
<span>(x+2)(x+10) answer</span>
Answer:
-12-3x=-3x+12
Step-by-step explanation:
Answer:
Click the caterpillar and hold down ur mouse . then move ur mouse down to the gray square and the rectangle that is outlined . PLS MARK BRAINLIEST!
Step-by-step explanation:
Answer:
70ml
Step-by-step explanation:
concentrate is half of water ( 140/2=70)
3 parts of 70ml in total (210ml )
2 parts of water-----------70+70 of water= 140
1 part of concentrate 70 of concentrate