Use FOIL, its the easiest way
First terms
Outer terms
Inner terms
Last terms
So you get
2x^2 + 7x + 3
(x+5) (x+5) hope that helps :)
Pile <span>of 564 sheets of paper is 25 mm high.
height of 1 paper = 25/564 mm = 4.43×10⁻³ mm
</span>
Answer:
add 5 then multiply by 1/2
Step-by-step explanation:
Twice a number is 2n.
The difference of twice a number and five 2n - 5.
The difference of twice a number and five is three. 2n - 5 = 3
2n - 5 = 3
2n - 5 + 5 = 3 + 5 (1) add 5
2n = 8
1/2*2n = 1/2*8 (2) multiply by 1/2
n = 4