Question

(x+3) (x-5) factorise with identity ​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

The answer is $x^{2} -2x -15$

Step-by-step explanation:

We will use the following given identity for solving the above-given sum.

The identity to be acquired here is as follows:

$(x + a)(x+b) = x^{2} + (a+b)x + ab$

We have been given here that,

$(x + 3)(x -5)$

= $x^{2} + ( 3 -5) x +$ 3× (-5)

= $x^{2} -2x -15$

Therefore we have the following fraction $x^{2} - 2x -15$ after solving the above expression.