Find the value using suitable identity:
$(x+3)( x-5)$

Given:

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

To do:

We have to solve the given expression using a suitable identity.

Solution:

We know that,

$(a+b)(c+d)=a(c+d)+b(c+d)=ac+ad+bc+bd$

Therefore,

$(x+3)(x-5)=x \times x+x \times (-5)+3\times x+3\times(-5)$

$=x^2-5x+3x-15$

Tutorialspoint

Updated on: 10-Oct-2022

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