What I have learned:

- Perfect square trinomial
- More complex different of squares

Explain What I learned:

- (p+q)²=p²+2pq+q²
- (p-q)²=p²-2pq+q²
- Replace A by x² and B by 4y² to get (x²-4y²)(x²+4y²) which factors further to (x-2y)(x+2y)(x²+4y²)

What I have learned:

- Perfect square trinomial
- More complex different of squares

Explain What I learned:

- (p+q)²=p²+2pq+q²
- (p-q)²=p²-2pq+q²
- Replace A by x² and B by 4y² to get (x²-4y²)(x²+4y²) which factors further to (x-2y)(x+2y)(x²+4y²)

What I have learned:

- algebra tile pieces representing polynomials addition of polynomials subtraction of polynomials distributive property

Explain What I learned:

- 5x²-3x²+2x-8x²= -11x²+7x
- 6x²-5x-2-(3x²-2x+7)=6x²-5x-2-3x²+2x-7= 3x²-3x-9

What I have learned:

- Surface Area and Volume for cubes, cylinder, prisms, pyramids, cones, spheres

Explain What I learned:

- Cylinder: V=π r² h ;
- Cone: V=1/3(area of base)h ; S=πr²+πrs
- Square-Based Pyramid: V=1/3(area of base)h ; S=2bs+b²
- Sphere: V=4/3πr³ ; S=4πr² or πd²