Answer:
-77
Step-by-step explanation:
-3 x 4 x 7 = -84
-84 + 7 = -77
So simplify and find 'ones'
remember that 1/1=1 so 7/7=1
find out how many 7/7 are in 13/7
13/7-7/7=6/7 (that's one)
so 13/7=7/7+6/7=1+6/7=1 and 6/7
therefor the missing number is 6
4x^2+23x-72=
4x(x+8)-9(x+8)=
i got dis 4 yo answer and it is (x+8)(4x-9)
hope dis helped
Answer:
There are no true solutions to the equation
Step-by-step explanation:
The equation is
y+1=√-2y-3
Find y
Square both sides
(y+1)^2=(√-2y-3)^2
y^2+2y+1= -2y-3
y^2+2y+1+2y+3=0
y^2+4y+4=0
Solve quadratic equation by factorisation
we have
(y+2)(y+2)=0
y=-2
Check
y+1=√-2y-3
-2+1=√-2(-2)-3
-1=√4-3
-1=√1
-1=1
This is not true
First, you subtract 2x on both sides
divided on both sides by -3