Question 3: 3/8 you just need to multiply across in order to get your answer
Answer:
<h2>∗ = 0.4x³</h2>
Step-by-step
We have :
2×(0,4)×15=12
(0,4)^2=0,16
(15y + ∗)^2 = 225y² + 12x³y + 0.16x⁶
= (15y)² + 2×(15y)×(0.4x³) + (0.4x³)²
then
∗ = 0.4x³
for the y value you would go up the top line by 2 in problem 3 for the x value you would go to the left by 4 and follow the same steps but with different numbers for problem 4
Have a great day
Hope that helps :)