<span><span>The sum of a squared and b is given by
</span>7 times the sum of a squared and b is given by
</span><span>
while 4 times the sum of a squared and b is given by
</span>
Therefore, <span>7 times the sum of a squared and b minus 4 times the sum of a squared and b is given by
</span>
</span>7 times the sum of a squared and b is given by
</span><span>
while 4 times the sum of a squared and b is given by
</span>
Therefore, <span>7 times the sum of a squared and b minus 4 times the sum of a squared and b is given by