Oblicz za pomocą wzoru skróconego mnożenia (a+b)²=a²+2ab+b²
(7+3)²=
(a-b)²=a²-2ab+b²
(4x - 7)²
(7+3)^2=7^2+2x7x3+3^2=49+42+9=100
(4x-7)^2=16x^2-56x+49
(7+3)²= 49+42+9=100
(4x - 7)² = 16 - 56x - 49
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(7+3)^2=7^2+2x7x3+3^2=49+42+9=100
(4x-7)^2=16x^2-56x+49
(7+3)²= 49+42+9=100
(4x - 7)² = 16 - 56x - 49