Bonjour
a. 4 + (x - 3) * 5
= 4 + 5x - 15
= 5x - 11
b. 2x (x + 1) - x
= 2x² + 2x - x
= 2x² + x
c. - (4 - x) * 2
= - (8 - 2x)
= - 8 + 2x
d. 3 * (5x * 2) + 4
= 3 * 10x + 4
= 30x + 4
e. 3 * x + x * 2x + 3 * 4 + 2x * 4
= 3x + 2x² + 12 + 8x
= 2x² + 11x + 12
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Bonjour
a. 4 + (x - 3) * 5
= 4 + 5x - 15
= 5x - 11
b. 2x (x + 1) - x
= 2x² + 2x - x
= 2x² + x
c. - (4 - x) * 2
= - (8 - 2x)
= - 8 + 2x
d. 3 * (5x * 2) + 4
= 3 * 10x + 4
= 30x + 4
e. 3 * x + x * 2x + 3 * 4 + 2x * 4
= 3x + 2x² + 12 + 8x
= 2x² + 11x + 12