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<br> If https://theeducationlife.com/perfect-square-trinomial/ can be squared, the outcome we get can be described as trinomial. Squaring a binomial means, multiplying the binomial by itself. Reflect on we have a simplest binomial "a + b" and we want to multiply that binomial independently. To show the multiplication the binomial may be written like the step below:<br><br> <br><br><br><br> <br><br>(a + b) (a +b) or (a + b)²<br><br> <br><br><br><br> <br><br>The above multiplication can be carried out using the "FOIL" approach or making use of the perfect main market square formula.<br><br> <br><br><br><br> <br><br>The FOIL method:<br><br> <br><br><br><br> <br><br>Let's ease the above propagation using the FOIL method because explained underneath:<br><br> <br><br><br><br> <br><br>(a &amp; b) (a +b)<br><br> <br><br><br><br> <br><br>= a² &amp; ab + ba plus b²<br><br> <br><br><br><br> <br><br>= a² plus ab plus ab + b² [Notice the fact that a