Let’s resolve into factors:7x2 + 48xy-7y2

7x2 + 48xy-7y2=7x2 + 49xy-xy-7y2=7x(x + 7y)-y(x + 7y)=(7x-y)(x + 7y)∴ the factors of 7x2 + 48xy-7y2 are (7x-y)(x + 7y)

Q1 G of 52 Page 131

Let’s resolve into factors:
7x² + 48xy-7y²

7x² + 48xy-7y²

=7x² + 49xy-xy-7y²

=7x(x + 7y)-y(x + 7y)

=(7x-y)(x + 7y)

∴ the factors of 7x² + 48xy-7y² are (7x-y)(x + 7y)

1 E

Let’s resolve into factors:

9r² + r-8

1 F

Let’s resolve into factors:

6m²-11mn-10n²

1 H

Let’s resolve into factors:

12 + x-6x²

1 I

Let’s resolve into factors:

6 + 5a-6a²-45