Evaluate: (3 - 2x) (3 + 2x) (9 + 4x^2)

(3 \- 2x) (3 \+ 2x) (9 \+ 4x 2 ) Using the formula [∵ (x \+ y)(x \- y) = x 2 \- y 2 ] = (3 2 \- (2x) 2 ) (9 \+ 4x 2 ) = (9 \- 4x 2 ) (9 \+ 4x 2 ) = 9 2 \- (4x 2 ) 2 = 81 \- 16x 4 Hence, (3 \- 2x) (3 \+ 2x) (9 \+ 4x 2 ) = 81 \- 16x 4

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Mathematics

Evaluate:
(3 - 2x) (3 + 2x) (9 + 4x²)

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Answer

(3 - 2x) (3 + 2x) (9 + 4x²)

Using the formula

[∵ (x + y)(x - y) = x² - y²]

= (3² - (2x)²) (9 + 4x²)

= (9 - 4x²) (9 + 4x²)

= 9² - (4x²)²

= 81 - 16x⁴

Hence, (3 - 2x) (3 + 2x) (9 + 4x²) = 81 - 16x⁴

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Mathematics

Evaluate:
(3 - 2x) (3 + 2x) (9 + 4x²)

Identities

Answer

Related Questions

Evaluate:
(a + b) (a - b) (a² + b²)

Evaluate:
(3x - 4y) (3x + 4y) (9x² + 16y²)

Use the formula: (a + b) (a - b) = a² - b² to evaluate:
(i) 21 x 19
(ii) 33 x 27
(iii) 103 x 97
(iv) 9.8 x 10.2
(v) 7.7 x 8.3

Mathematics

Evaluate:(3 - 2x) (3 + 2x) (9 + 4x2)

Identities

Answer

Related Questions

Evaluate:(a + b) (a - b) (a2 + b2)

Evaluate:(3x - 4y) (3x + 4y) (9x2 + 16y2)

Use the formula: (a + b) (a - b) = a2 - b2 to evaluate:(i) 21 x 19(ii) 33 x 27(iii) 103 x 97(iv) 9.8 x 10.2(v) 7.7 x 8.3

Evaluate:
(3 - 2x) (3 + 2x) (9 + 4x²)

Evaluate:
(a + b) (a - b) (a² + b²)

Evaluate:
(3x - 4y) (3x + 4y) (9x² + 16y²)

Use the formula: (a + b) (a - b) = a² - b² to evaluate:
(i) 21 x 19
(ii) 33 x 27
(iii) 103 x 97
(iv) 9.8 x 10.2
(v) 7.7 x 8.3