I believe you just multiply 150x3 and get 450
X^2+x-30 -- find two numbers that add to one and multiply to -30, which would be 6 and -5. so now you have x^2+6x-5x-30. factor out x and 5 to get x(x+6)-5(x+6). so you get (x+6)*(x-5)
Answer:
<em> </em><em>1</em><em>:</em><em>4</em>
<em>hope</em><em> </em><em>helpful</em><em> </em>:) !!!!
She regrouped the numbers instead of multiplying like 8b(2b-r) -4r(2b-r).
