☺ Salut ☻
[tex]\rule{0.5cm}{1mm}DEVELOPPER\: ET\: REDUIRE\rule{0.5cm}{1mm}[/tex]
[tex]\blue{\boxed{4x(2x-7)(x-3)(x-4)(8x+11)(2x-5)}}[/tex]
[tex]\blue{\boxed{(4x\times 2x +4x\times (-7))(x\times x +x\times (-4) -3\times x -3\times (-4))(8x\times 2x +8x\times (-5) +11\times 2x +11\times (-5))}}[/tex]
[tex]\blue{\boxed{(8x^{2}-28x)(x^{2}-4x-3x+12)(16x^{2}-40x+22x-55)}}[/tex]
[tex]\blue{\boxed{(8x^{2}-28x)(x^{2}-7x+12)(16x^{2}-18x-55)}}[/tex]
[tex]\blue{\boxed{(8x^{2}\times x^{2} + 8x^{2}\times (-7x) + 8x^{2}\times 12 - 28x\times x^{2} -28x\times (-7x) -28x\times 12)(16x^{2}-18x-55)}}[/tex]
[tex]\blue{\boxed{(8x^{4}-84x^{3}+292x^{2}-336x)(16x^{2}-18x-55)}}[/tex]
[tex]\blue{\boxed{8x^{4}\times 16x^{2} +8x^{4}\times (-18x) +8x^{4}\times (-55) -84x^{3}\times 16x^{2} -84^{3}\times (-18x) -84x^{3}\times (-55) + 292x^{2}\times 16x^{2} +292x^{2}\times (-18x) +292x\times (-55) -336x\times 16x^{2} -336x\times (-18x) -336x\times (-55)}}[/tex]
[tex]\blue{\boxed{128x^{6}+(-144x^{5})+(-440x^{4})-1344x^{5}-(-1512x^{4})-(-4620x^{3})+4672x^{4}+(-5256x^{3})+(-16280x^{2})-5376x^{3}-(-6048x^{2})-(-18480x)}}[/tex]
[tex]\blue{\boxed{128x^{6}-144x^{5}-440x^{4}-1344x^{5}+1512x^{4}+4620x^{3}+4672x^{4}-5256x^{3}-16280x^{3}-5376x^{3}+6048x^{2}+18480x}}[/tex]
[tex]\blue{\boxed{\boxed{128x^{6}-1488x^{5}+5744x^{4}-6012x^{3}-10012x^{2}+18480x}}}[/tex]
[tex]\rule{6cm}{1mm}[/tex]
