Question

A-(+8x2) × (+7x4)
b- (+4p2) × (-6q3)
c - (-3xyz) × (-5xyz)
d - (-8a2b) × ( 6ab)
e- 6 × 7x
f- 3 × (-5x)

Answer 1

A)

= (+8x²) . (+7x⁴)

= 8.7 . x².x⁴

= 56x⁶

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b)
= (+4p²) . (- 6q³)

= - 24p²q³

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c)
= (- 3xyz) . (- 5xyz)  

= - 3.(-5) . x.x.y.y.z.z

= 15 x²y²z²

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d)
= (- 8a²b) . ( 6ab)

= - 8.6 . a².a.b.b

= - 48 a³b²

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e)
= 6. 7x  
=  42x

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f)
 
= 3. (- 5x)
=  - 15x

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