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32 Développe et réduis les expressions suivantes : A = (x + 4)(x + 3) B = (y + 3)(2y + 8) C = (3z + 4)(5 + 6z) D = (7t+8)(3 + 5f)
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32 Développe et réduis les expressions

suivantes :
A = (x + 4)(x + 3)
B = (y + 3)(2y + 8)
C = (3z + 4)(5 + 6z)
D = (7t+8)(3 + 5f)

User Michael Andorfer
by
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1 Answer

4 votes
A=(x+4)(x+3)
=x²+3x+4x+12
=x²+7x+12

B=(y+3)(2y+8)
=2y²+8y+6y+24
=2y²+14y+24

C=(3z+4)(5-6z)
=15z-18z²+20-24z
=18z²-9z+20

D=(-7t+8)(3-5t)
=-21t+35t²+24-40t
=35t²-61t+24
User Toubi
by
8.6k points
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