math
posted by Melissa on .
expand and simplify
1.(x^23x+4)(x^2+3x4)
2.3(2x5)9(4x5)

1. x^4+3x^34x^2+3x^39x^2+12x4x^2+12x16
simplified form:
x^4+6x^317x^2+24x16
or
x^46x^3+17x^224x+16
2. 6x1536x+45
simplified form:
30x+30
30x30
hope it will help you. :)