2 answers:
Answer:
1.-9x^2
2.16x^4
3.x^2+4x
4.x^2+4x+4
5.x^2-x-12
6.x^4+2x^3-4x^2
Step-by-step explanation:
1) (-3x)(3x)
= -9x^2
2) (4x)^2 = 4^2 x^2
= 16x^2
3) x(x+4) = x•x+4x
= x^2+4x
4) (x+2)^2 = x^2+2x•2+2^2
= x^2+4x+4
5) (x+3)(x-4) = x^2-4x+3x-12
= x^2-x-12
6) x^2(x^2+2x-4) = x^2•x^2•x^2•2x-4x^2
= x^4+2x^3-4x^2
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Her brother would have been 16, which is half of 32 and now he would be 18 years old
Answer:
yeah guys i also want to know that questian
Answer:
4/5 or 0.8
Step-by-step explanation:
3*3*4/45
3*3=9
9*4=32
32/45=4/5
Hope it helps ;)
Answer:
x = 5.75
Step-by-step explanation:
4^(x+7) = 8^(2x-3)
But; 4^(x+7) = 2^2(x+7)
8^(2x-3) = 2^3(2x-3)
2^2(x+7) = 2^3(2x-3)
Since the bases are the same;
2(x+7) = 3(2x-3)
2x + 14 = 6x -9
14 + 9 = 6x - 2x
23 = 4x
x = 23/4
<u>x = 5.75</u>
Answer:
Bath towels: $10 Hand towels: $5
Step-by-step explanation:
If Joy bought two bath towels, that are $10 each that's $20 total; but she returned 3 hand towels that cost $5 and $15 total. 20-15=5
