Question

Slove this 3 question plz

Answer 1

x - 64x³

= x( 1 - 64x²)

= x (1² - (8x)² )

= x (1 - 8x) (1 + 8x)

.

150 - 6x²

= 6( 25 - x²)

=6( 5² - x² )

= 6 ( 5 - x) ( 5 + x)

.

20x² - 45

= 5(4x² - 9)

= 5( (2x)² - 3²)

= 5(2x - 3) (2x + 3)

.

Answer 2

» USING ALGEBRAIC IDENTITY :-

=> A² - B² = (A - B)(A + B)

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$|9|$

$= > x - 64 {x}^{3} \\ \\ = > x(1 - 64 {x}^{2} ) \\ \\ = > x( {1}^{2} - {8}^{2} . {x}^{2} ) \\ \\ = > x( {1}^{2} - {(8x)}^{2} ) \\ \\ = > x(1 - 8x)(1 + 8x)$
_____________________[ANSAWR]

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$|11|$
$= > 150 - 6 {x}^{2} \\ \\ = > 6(25 - {x}^{2} ) \\ \\ = > 6( {5}^{2} - {x}^{2} ) \\ \\ = > 6(5 - x)(5 + x)$
____________________[ANSWER]

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$|13|$
$= > 20 {x}^{2} - 45 \\ \\ = > 5(4 {x}^{2} - 9) \\ \\ = > 5(( {2x)}^{2} - {3}^{2} ) \\ \\ = > 5(2x - 3)(2x + 3)$
_____________________[ANSWER]

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