Ontario 10 Applied (MFM2P)
Expand difference of two squares

## Interactive practice questions

Which of the expressions below is equivalent to $\left(a+b\right)\left(a-b\right)$(a+b)(ab)?

$a^2-b^2$a2b2

A

$a^2+b^2$a2+b2

B

$a^2+2ab+b^2$a2+2ab+b2

C

$a^2-2ab+b^2$a22ab+b2

D

$a^2-b^2$a2b2

A

$a^2+b^2$a2+b2

B

$a^2+2ab+b^2$a2+2ab+b2

C

$a^2-2ab+b^2$a22ab+b2

D
Easy
Less than a minute

Expand the following:

$\left(m+3\right)\left(m-3\right)$(m+3)(m3)

Expand the following:

$\left(x-7\right)\left(x+7\right)$(x7)(x+7)

Expand the following:

$\left(v+\frac{1}{7}\right)\left(v-\frac{1}{7}\right)$(v+17)(v17)

### Outcomes

#### 10P.QR1.01

Expand and simplify second-degree polynomial expressions involving one variable that consist of the product of two binomials [e.g., (2x + 3)(x + 4)] or the square of a binomial [e.g., (x + 3)^2], using a variety of tools and strategies