Math, asked by sahbazm947, 4 months ago

(3х + 5.5) (3х – 0.5) special products and expansion​

Answers

Answered by TYKE
1

Question :

(3x + 5.5) (3x – 0.5) special products and expansion

Formula Used :

 \tt (x + a)(x - b) =  {x}^{2}  + ax + bx + ab

Here,

x = 3x

a = 5.5

b = 0.5

Solution :

 \sf(x + a)(x + b)

 \sf {x}^{2}  + (a + b)x + ab

 \sf {9x}^{2}  + (5.5 + 0.5)3x + 5.5 \times 0.5

 \rm \: 9 {x}^{2}  + 6 \times 3x + 2.75

 \sf9 {x}^{2}  + 18x + 2.75

 \sf \: So \:  the  \: answer  \: is \:  \boxed{  \: 9 {x}^{2}  + 18x + 2.75}

Answered by pk3653031
1

Answer:

9x2 + 15x + 2.75

Step-by-step explanation:

3x(3x - 0.5) + 5.5(3x + 0.5)

9x2 - 1.5x + 16.5x + 2.75

9x2 + 15x + 2.75

Hope my answer will help you

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