Question

7. Simplify 3x(x-7)+2(x + 3) and find its value for
(x) = -5



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Answer 1

Answer:

176

Step-by-step explanation:

3(-5)(-5-7)+2(-5+3)

-15(-12) +2(-2)

180-4

176

Answer 2

Answer:

176

Step-by-step explanation:

3x(x-7)+2(x + 3)

= 3x sq. - 21x + 2x +6

Put the value of x = -5

= 3(25) - 21(-5) + 2(-5) + 6

= 75 + 105 - 10 + 6

= 176