expand by using identity ( 2x - y + 6) ²
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it is of the form of (a-b+c)^2 =a^2+b^2+c^2-2ab-2bc+2ca
same formula for (2x-y+6)^2
you will get 4x^2 +y^2+36-2×2×1-2×1×6+2×6×2
=4x^2+y^2+36-4-12+24
=4x^2+y^2+36+8
please don't forget to mark as brainlest
same formula for (2x-y+6)^2
you will get 4x^2 +y^2+36-2×2×1-2×1×6+2×6×2
=4x^2+y^2+36-4-12+24
=4x^2+y^2+36+8
please don't forget to mark as brainlest
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