przekszatlcic wyrazenie trzeba ze wzoru skroconego mnozenia:
a) (2a+3b) do kwadratu
b)(7a-3b) do kwadratu
c)(4a-5b) do kwadratu
d)(2a+b) do kwadratu
e)(4a-3b) do kwadratu
f)(7a+2b)do kwadratu
;D.
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a) (2a+3b)²=4a+12ab+9b²
b)(7a-3b)²=49a²-42ab+9b²
c)(4a-5b)²=16a²-40ab+25b²
d)(2a+b)²=4a²+4ab+b²
e)(4a-3b)²=16a²-24ab+9b²
f)(7a+2b)²=49a²+28ab+4b²
a)
(2a+3b)²=4a²+12ab+9b²
b)
(7a-3b)²=49a²-42ab+9b²
c)
(4a-5b)²=16a²-40ab+25b²
d)
(2a+b)²=4a²+4ab+b²
e)
(4a-3b)²=16a²-24ab+9b²
f)(7a+2b)²=49a²+28ab+4b²