Answer:
to find the answer for 1 pencil you just need to divide
Step-by-step explanation:
3.20$ divide by 4=0.8 /each pencil cost 0.8
4.80$ divide by 12=0.4 /each pencil cost 0.4
Answer:
x= −5
/3
Step-by-step explanation:
Factorise x^2+6x+8=0 to get (x+4)(x+2)=0
Solve to get x=-4, x=-2
Factorise x^2+6x+13=0 (I assumed you mistyped and wrote * instead of +)
Use the quadratic formula and you find that there are no real roots so the answer for this is just x=-4, x=-2
Tell me if I made any mistakes
Answer:
x-2x-35
Step-by-step explanation:
-5 and 7
x=-5
x=7
x+5=0
x-7=0
Put them in bracket.
(x+5)(x-7)
Expanding the bracket
x(x-7)+5(x-7)
x-7x+5x-35
x-2x-35
