Answer: No, she is right
Step-by-step explanation:
Factor the trinomial, what two numbers multiply to equal 6 but add to equal 7. That is 6 and 1.
The (x+3) will cancel
(510/3) x 8 should give you the answer you're looking for
Answer:
x=9 and y=3
Step-by-step explanation:
Let's solve your system by substitution.
−4x+6y=−18 and y=−2x+21
Rewrite equations:
y=−2x+21;−4x+6y=−18
Step: Solve y=−2x+21for y:
y=−2x+21
Step: Substitute−2x+21foryin−4x+6y=−18:
−4x+6y=−18
−4x+6(−2x+21)=−18
−16x+126=−18(Simplify both sides of the equation)
−16x+126+−126=−18+−126(Add -126 to both sides)
−16x=−144
−16x
−16
=
−144
−16
(Divide both sides by -16)
x=9
Step: Substitute9forxiny=−2x+21:
y=−2x+21
y=(−2)(9)+21
y=3(Simplify both sides of the equation)
Answer:
x=9 and y=3
2x^2 + 16x + 50 = 0
divide through by 2:-
x^2 + 8x + 25 = 0
(x + 4)^2 - 16 + 25 = 0
(x + 4)^2 = -9
x+4 = 3i or -3i
x = -4 + 3i , -4 - 3i
Answer:
x = 186 130/181
Step-by-step explanation:
x⁄ 4 + x⁄14 + x⁄17 = 71
119x/476 + 34x/476 + 34x/476 = 71
181x/476 = 71
x = 186 130/181