Question

how to factorise a power 4 - 7 square + 1

Answer 1

${a}^{4} - 49 + 1 \\ {a}^{4} - 48 \\ { {a}^{2} }^{2} -( {4 \sqrt{3} })^{2} \\ ( {a}^{2} + 4 \sqrt{3} )( {a}^{2} - 4 \sqrt{3} )$

Answer 2

Step-by-step explanation: