WebContribute to lyyaini/lon development by creating an account on GitHub. Web22 nov. 2024 · If 3x + 2y = 12 and xy = 6, find the value of 27x 3 + 8y 3 Solution: We have 3x + 2y = 12 On cubing both sides, we have ⇒ (3x + 2y) 3 = 12 3 ⇒ (3x) 3 + (2y) 3 + 3 × 3x × 2y (3x + 2y) = √728 ⇒ 27x 3 + 8y 3 + 18xy (3x + 2y) = √728 ⇒ 27x 3 + 8y 3 + 18 × 6 × 12 = √728 ⇒ 27x 3 + 8y 3 + 1296 = √728 ⇒ 27x 3 + 8y 3 = √728 – 1296 ⇒ 27x 3 + 8y 3 = 432

R.D. Sharma Solutions Class 9th: Ch 4 Algebraic Identities Exercise 4.3

Web3 sep. 2024 · 2x + 3y = 13, xy = 6 Cubing both sides, (2x + 3y) 3 = (13) 3 ⇒ (2x) 3 + (3y) 3 + 3 x 2x x 3X2x + 3y) = 2197 ⇒ 8x 3 + 27y 3 + 18xy(2x + 3y) = 2197 ⇒ 8x 3 + 27y 3 + 18 x 6 x 13 = 2197 ⇒ 8X 3 + 27y 3 + 1404 = 2197 ⇒ 8x 3 + 27y 3 = 2197 – 1404 = 793 ∴ 8x 3 + 27y 3 = 793. Question 10. If 3x – 2y= 11 and xy = 12, find the value of 27x ... WebMaths Teachers Guide Grade 9 grade12books 1 farmhouseonthehillnc

Solve 2xy-8x+3y-12 Microsoft Math Solver

Web2 ( 2x^2 + 8x + 7) Step-by-step explanation: GCF of the three Numbers. the can be divided by 2. so 2( 4x^2 + 16x +14) Multiply Them. 2 x 4x^2 = 2x^2 copy the exponent and the variable. 2 x 16x = 8x. 2 x 14 = 7. so the answer is. 2( 2x^2 + 8x + 7) 26. 2. 8x8 , 16x and 40x4 Answer: 64 and 160. Step-by-step explanation: 8x8 . 8,16,24,32,40,48,56 ... Web30 jan. 2010 · SOLUTION : Equations : 2x+3y = 13 ----------- (1) x y= 6 ----------- (2) SUBSTITUTION METHOD : From (1) x= (13 – 3y)/2 Substitute in (2) x y =6 { (13 – 3y)/2} * y = 6 { (13 – 3y)} y = 6*2 13y – 3y 2 = 12 3y 2 - 13y +12 = 0 ( SPLITTING THE MIDDLE-TERM METHOD) 3y 2 - 9y – 4y + 12 = 0 3y (y -3) + 4 (y-3) = 0 (y-3) ( 3y-4) = 0 y-3 = 0 … Web28 feb. 2024 · 2x+3y=12. cube on both sides, (2x+3y)^3 =12^3 by the identity (a+b)^3= a^3 +b^3 +3ab(a+b) here, 8x^3 + 27y^3 +3(6xy)(2x+3y) =12^3 putting the values which are … farmhouse on the boone recipes