Please Solve it with proper steps-explanation . Don't spam. Right answer mark as BRAINLIAST. See the picture
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Answer:
Qx*
Step-by-step explanation:
If x = by + cz + du, y = cz + ax + du, z = ax + by + du, u = ax + by + cz. Then the value of the expression. a1 + a + b1 + b + c1 + c + d1 + d isQx*
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