Question

If x=
= 20 find the value of (4x - 9) X (10x + 2).
OS​

Answer 1

Answer:

as the value of x is 20

so (4x-9) × (10×+2)

= (4×20-9) × (10×20+2)

=80-9×200+2

=71×202

=14342

Step-by-step explanation:

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Answer 2

Answer:

14342

Step-by-step explanation:

(4x - 9) × (10x + 2)

Putting x= 20

{4(20)-9}×{10(20)+2}

= (80-9)×(200+2)

= 71×202

= 14342

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