Question

KWADRAT SUMY DWÓCH WYRAŻEŃ :

(2x+3y)do kwadratu =

(5a+7)do kwadraty=

(1/2+1/3)do kwadratu=

(3x+1/2y)do kwadratu=

(3x+4y)do kwadratu=

(7a+2b)do kwadratu=

(10a+1)do kwadratu=

(9a+b)do kwadratu=

(1/5x+1/2)do kwadratu=

(0,1x+y)do kwadratu=

liczę ,że pomożecie ::))

Answer 1

WZÓR SKRÓCONEGO MNOŻENIA:
(a^{2}+b^{2}) = a^{2} + 2ab + b^{2}


(2x+3y)^{2} = 4x^{2} + 12xy + 9y^{2}
(5a+7)^{2} = 25a^{2} + 70a + 49
(1/2 +1/3)^{2} = 1/4 + 1/3 + 1/9
(3x+1/2y)^{2} = 9x^{2} + 3xy + 1/4y
(3x+4y)^{2} = 9x^{2} + 24xy + 16y^{2}
(7a+2b)^{2} = 49^{2} + 28ab + 4b^{2}
(10a+1)^{2} = 100a^{2} + 20a + 1
(9a+b)^{2} = 81a^{2} + 18ab + b^{2}
(1/5x+1/2)^{2} = 1/25x^{2} + 1/5x +1/4
(0,1x+y)^{2} = 0,01x^{2} + 0,2xy + y^{2}


* ^{2} - do kwadratu