Answer:
Hans has done a mistake in the second step.
The correct answer is:
5x^2+13x-6=0
5x^2+15x-2x-6x=0 - 5. -6=-30 -30=15. -2
5x(1+3x)-2x(1+3x)=0
(5x-2x)(1+3x)=0
5-2x=0 1+3x=0
x=5/2 x=-1/3
Answer:
16
Step-by-step explanation:
correct on Edg
2 x - 5y = 13
2 × -1 - 5 × -3 = 13
Answer:
(-1, -3)
Answer:
i believe it is (3,6) im not 100% sure though
Step-by-step explanation:
Answer:
therefore they sell 30 pens.
Step-by-step explanation:
