I hope I can help!
(9x+4)-(5x+3)
4x + 7
Answer: 9^2 (81)+8^2(64)=12.04^2(144.97) which rounded/estimated is equal to 145
Yep! You did it correct :)
Answer:
48w^2y^2
I used a simplify calculator I hope this is correct.
Answer:
b²+3.5a+8.4b
Step-by-step explanation:
Given the expression
3b^2 + 2(a+5.4b) -2.4b + 1.5a - 2b^2
Expand
3b^2 + 2a+10.8b -2.4b + 1.5a - 2b^2
Collect the like terms
= 3b²-2b²+2a+1.5a+10.8b-2.4b
= b²+3.5a+8.4b
Hence the equivalent expression is b²+3.5a+8.4b
