- #1
zelda1850
- 66
- 0
tried to solve the problem with foil method but i got confuse can someone help
1) (-7 + [tex]\sqrt{3x}[/tex])( 4+ [tex]\sqrt{3x}[/tex])
-7 * 4 = -28
-7 * [tex]\sqrt{3x}[/tex] = -7[tex]\sqrt{3x}[/tex]
[tex]\sqrt{3x}[/tex] * 4 = 4[tex]\sqrt{3x}[/tex]
[tex]\sqrt{3x}[/tex] * [tex]\sqrt{3x}[/tex] - does this equal [tex]\sqrt{3x}[/tex] square or is it just 3x or leave it [tex]\sqrt{3x}[/tex]
this is what i got so far
= -28 + -7[tex]\sqrt{3x}[/tex] + 4[tex]\sqrt{3x}[/tex] + [tex]\sqrt{3x}[/tex]
-7[tex]\sqrt{3x}[/tex] + 4[tex]\sqrt{3x}[/tex] = 3[tex]\sqrt{3x}[/tex]
= -28 + 3[tex]\sqrt{3x}[/tex] + [tex]\sqrt{3x}[/tex]
1) (-7 + [tex]\sqrt{3x}[/tex])( 4+ [tex]\sqrt{3x}[/tex])
-7 * 4 = -28
-7 * [tex]\sqrt{3x}[/tex] = -7[tex]\sqrt{3x}[/tex]
[tex]\sqrt{3x}[/tex] * 4 = 4[tex]\sqrt{3x}[/tex]
[tex]\sqrt{3x}[/tex] * [tex]\sqrt{3x}[/tex] - does this equal [tex]\sqrt{3x}[/tex] square or is it just 3x or leave it [tex]\sqrt{3x}[/tex]
this is what i got so far
= -28 + -7[tex]\sqrt{3x}[/tex] + 4[tex]\sqrt{3x}[/tex] + [tex]\sqrt{3x}[/tex]
-7[tex]\sqrt{3x}[/tex] + 4[tex]\sqrt{3x}[/tex] = 3[tex]\sqrt{3x}[/tex]
= -28 + 3[tex]\sqrt{3x}[/tex] + [tex]\sqrt{3x}[/tex]