Question

Find product of (3x+4) and ( 2x+3 ) and its value , if x=3. (2m) *
143
134
144
None​

Answer 1

Answer:

D] None

Step-by-step explanation:

Here we need to find the product of (3x + 4) and (2x + 3).

(3x + 4) (2x + 3)

= 3x(2x + 3) + 4(2x + 3)

= 3x(2x) + 3x(3) + 4(2x) + 4(3)

= 6x² + 9x + 8x + 12

= 6x² + 17x + 12

∴ The product of (3x + 4) and (2x + 3) = 6x² + 17x + 12

When x = 3,

Substitute the value of x as 3 in the above expression

6x² + 17x + 12

= 6(3)² + 17(3) + 12

= 6(9) + 17(3) + 12

= 54 + 51 + 12

= 117

∴ Value of the polynomial when x = 3 is 117

Answer 2

Solution ↓

Product of (3x + 4) and (2x + 3) :-

→ (3x + 4) (2x + 3)

→ 3x(2x + 3) + 4(2x + 3)

→ 3x(2x) + 3x(3) + 4(2x) + 4(3)

→ 6x² + 9x + 8x + 12

→ 6x² + 17x + 12

Therefore, the product of :-

(3x + 4) and (2x + 3) is :-

6x² + 17x + 12.

If x = 3, then each x will become 3.

→ 6x² + 17x + 12

→ (6 × 3²) + (17 × 3) + 12

→ (6 × 3 × 3) + 51 + 12

→ (6 × 9) + 51 + 12

→ 54 + 51 + 12

→ 117 (Required Ans)

Therefore, we have got 117 as our

final answer.

Answer :-

Option [D] None

Hope it will help you.