4) x*2x=
2x^2
9) 5x+2*x+3=
5x^2+17x+6
i think these are right lol gl
I think the answer is a but I'm not sure
Answer: 1️⃣ 40
Step-by-step explanation:
<em>x - is the side of the square</em>
<em />
<em />
<em>Find the perimeter of the square.</em>
<em>Perimeter of the square = 4 × 10 cm = 40 cm</em>
<em />