The given equation is
To solve for x, we have to subtract 8 to both sides
Now we need to get rid of -9 from the left side, and for that we do division
Answer:
400cm²
Step-by-step explanation:
Total surface area of a prism includes the area of the top and bottom triangle sides of the prism, plus the area of all 3 rectangular sides.
Base & Bottom triangle area: 2 x [(8 x 15)/2] = 120cm²
Side triangle area: 17 x 7 + 8 x 7 + 15 x 7 = 280cm²
Total surface area = 280 + 120 = 400cm²
Answer:
(x²+5) (x-3)²
Step-by-step explanation:
x³ - 3x² + 5x - 15
x²(x-3) + 5(x-3)
(x²+5) (x-3)²
