Question

Tell me the right answer. It is urgent​

Answer 1

1 Factor out the common term 77.

\frac{7({l}^{2}-5l+4)}{7}(l-1)

7

7(l

2

−5l+4)

(l−1)

2 Factor {l}^{2}-5l+4l

2

−5l+4.

\frac{7(l-4)(l-1)}{7}(l-1)

7

7(l−4)(l−1)

(l−1)

3 Cancel 77.

(l-4)(l-1)(l-1)

(l−4)(l−1)(l−1)

4 Use Product Rule: {x}^{a}{x}^{b}={x}^{a+b}x

a

x

b

=x

a+b

.

(l-4){(l-1)}^{2}

(l−4)(l−1)

2