Question

simplify 2x(5x-4)+3x and find its value for x =-2​

Answer 1

Answer:

50

Step-by-step explanation:

• if x = -2
• 2x(5x-4)+3x
• (2× -2)[(5× -2) - 4] + (3× -2)
• (-4)(-10 - 4) + -6
• -4 ( -14 ) + -6
• 56+ -6
• 50

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Answer 2

Answer:

Answer is 50.

Step-by-step explanation:

x= -2

Let x be the f(x).

f (x)= 2x(5x-4)+3x

f (x)= (2×-2)[(5×-2)-4]+(3×-2)

f (x)= -4×(-10-4)-6

f (x)= (-4×-14)-6

f (x)= 56-6

f (x)= 50