Sagot :
Bonjour,
(4y+2)(4y+2)+3y(5y-9)
= 16y² +8y + 8y +4 + 15y² - 27y
= 31y² -11y +4
Bonjour,
Développer :
= (4y+2)(4y+2)+3y(5y-9)
= (4y+2)²+3y(5y-9)
= (4y+2)²+15y²-27y
= 16y²+16y+4+15y²-27y
= 31y²+16y+4-27y
= 31y²-11y+4
Bonne journée.
Bonjour,
(4y+2)(4y+2)+3y(5y-9)
= 16y² +8y + 8y +4 + 15y² - 27y
= 31y² -11y +4
Bonjour,
Développer :
= (4y+2)(4y+2)+3y(5y-9)
= (4y+2)²+3y(5y-9)
= (4y+2)²+15y²-27y
= 16y²+16y+4+15y²-27y
= 31y²+16y+4-27y
= 31y²-11y+4
Bonne journée.