Bonsoir;
A = (4x - 1)² - x²
= 16x² -8x +1 -x²
= 15x² -8x +1
B = 2(x + 7)²
= 2( x² +14x+49)
= 2x² +28x +98
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Bonsoir;
A = (4x - 1)² - x²
= 16x² -8x +1 -x²
= 15x² -8x +1
B = 2(x + 7)²
= 2( x² +14x+49)
= 2x² +28x +98