Question

4 Expand each of the following by using suitable
identities.
(i) (x - 2y - 3z)? (ii) (a + 2b + 50)
2
(iii) (-2x + 5y – 3z)?
(iv)
a
2
1
b + c
3
+​

Answer 1

Answer:

1.x^2-4y^2-9z^2

2.a^2+4b^2+2500

3.4x^2+25^2-9z^2