Question

answer ninth one with explanation​

Answer 1

Answer:

$\sf \large{ \green{ \underline {\underline{ \sf \: GIVEN \: \: \: QUESTION :-}}}}$

$\sf \: simplyfy \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \sf \: 3x(4x - 5) + 3(x + 5)$

$\sf \large{ \green{ \underline {\underline{ \sf \:SOLUTION :-}}}}$

$= \sf \: 3x(4x - 5) + 3(x + 5)$

$= \sf \: 12 {x}^{2} - 15x + 3x + 15$

$= \sf \: 12 {x}^{2} - 12x + 15$

$= \sf \: 3 \big\{4{x}^{2} - 4x + 5 \big\}$

Answer 2

Answer:

12x²-12x+15

Step-by-step explanation:

3x(4x-5)+3(x+5)

= 12x²-15x+3x+15

=12x²-12x+15