___________
Maths
Expressions and formulae
Starter quiz
Try it
Give to class
Which of these expressions are binomials?
x - 8
✓
2a + 4
✓
x^2 + 4x + 4
3y - 2x
✓
2xy
Which of these are equivalent to
a - 6
?
6 - a
-a + 6
-6 + a
✓
-6a
In the expression
6x + 4
, you call 6 the
______
of
x
.
'coefficient' ✓
Match each product to its simplified form.
x \times -x
⇔
-x^2
✓
-x\times -x
⇔
x^2
✓
-2x \times -3x
⇔
6x^2
✓
-6x \times y
⇔
-6xy
✓
-3y \times -2x
⇔
6xy
✓
6x\times -x
⇔
-6x^2
✓
Which of these expressions can be written as the difference of two squares?
(x-29)^2
(x + 29)(x - 20)
(x + 29)(x - 29)
✓
(x - 9)(x - 9)
(x - 9)(y + 9)
Match each product of two binomials to its expanded form.
(x - 5)^2
⇔
x^2 - 10x + 25
✓
(x - 4)(x - 6)
⇔
x^2 - 10x + 24
✓
(x + 2)(x - 12)
⇔
x^2 - 10x - 24
✓
(x + 4)(x - 6)
⇔
x^2 - 2x - 24
✓
(x + 4)(x + 6)
⇔
x^2 + 10x + 24
✓
(x + 12)(x - 2)
⇔
x^2 + 10x - 24
✓
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