Solve and check: 3 x2 + 5x + 6 + x − 1 x + 2 = 7 x + 3

3 -2x +5=0

Step-by-step explanation:

Combine liked terms:

3+5x+x-1x+6+2=7x+3

3+6x-1x+8=7x+3

3+5x+8=7x+3

Subtract 3: 3+5x+8-3=7x+3-3

3+5x+5=7x

Now subtract 7x:

3+5x+5-7x=7x-7x

If you want combine liked terms:

3-7x+5x+5=0

3-2x+5=0

Hope this helps!

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

60°

step-by-step explanation:

the measure angle of c in an isosceles triangle abc is 60° because in isosceles triangle,the measures of all the angles is 60°.