Which equations are correct? select each correct answer. −7x2(4x3+2)=−28x6−14x2 −5d3(3d2+4)=−15d5−20d3 −2b3(6b2+5)=−12b5−10b3 −3y4(5y2+2)=−15y8−6y4

Step-by-step explanation:

Given equations are correct if the left side and right side of the equation are same,

First option :

Second option :

Third option :

Fourth option :

d

step-by-step explanation:

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x