Question

1. What must be multiplied to (x + 1) to obtain (x2 + 4x + 3)?

2. A cube has a side measure of (5x), find the volume of the cube.

3. Find the circumference of a plate if its radius measures (x + 7).

4. A notebook cost (2x + 5) pesos while a pencil cost (x - 7) pesos. What is the total cost
of 5 notebooks and 2 pencils?

5. A box measures (a + 2) cm by (a - 2) cm by 4 cm. Find the volume of the box.

6. The cost of 1 kilo of chicken is (x2 + 8x - 3). How much a 4 kilos of chicken cost?​

Answer 1

`1. x + 3 \\ 2.125 {x}^(3) \\ 3.2\pi(x + 7) \\ 4.12x + 11 \\ 5.4{a}^(2) - 16 \\ 6.4 {x}^(2) + 32x - 12`