If 2x-y+z is 0 then 4x2-y2+z2+4xz is equal to
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Step-by-step explanation:
We know that, 2x - y + z = 0
let, 2x + z = y ---- (eqn 1)
Consider, 4x² - y² + z² +4xz
= 4x² + z² + 4xz - y² (Rearranging the terms)
= (4x² + z² + 4xz) - y²
= ( 2x + z)² - y² (Using a²+b²+2ab= (a+b)² formula)
= (y)²-y² ( From eqn 1)
= 0
Thus, if 2x - y + z = 0 then 4x² - y² + z² +4xz=0
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