Factorising the Difference of Two Squares
Question 1:
x
2
−
81
x
+
9
x
−
9
Question 1:
x
2
−
121
x
+
11
x
−
11
Question 1:
x
2
−
121
x
+
11
x
−
11
Question 1:
x
2
−
16
x
+
4
x
−
4
Question 1:
16
x
2
−
1
4
x
+
1
4
x
−
1
Question 1:
16
x
2
−
16
4
x
+
4
4
x
−
4
