Grade 8Algebra
Find the product of -1/2x2y2z and −4xz and verify the result for x=2, y=3 and z=4
Find the product of -1/2x2y2z and −4xz and verify the result for x=2, y=3 and z=4
1 Answer
Suman Dash
Product : -1/2[x2y2z][-4xz]
= (-1/2)(-4)[x2.x.y2.z.z]
= 2[x3.y2.z2]
Verifying for x = 2, y = 3 and z = 4
Solving LHS :
-1/2[(22)(32)(4)][(--4)(2)(4)]
= (2)[4×9×4][2×4]
= 72 × 32 = 2304 ........(i)
Solving RHS :
2[(23)(32)(42)]
= 2×8×9×16
= 2304 .........(ii)
From equations (i) & (ii), we can say LHS = RHS
Hence verified.
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