To expand and simplify the expression 4(2+5z)−3(z+2), we will first use the distributive property to expand each term, and then combine like terms.
Steps:
1. Expand 4(2+5z):
①Multiply 4 by 2: 4⋅2=8
②Multiply 4 by 5z: 4⋅5z=20z
So, 4(2+5z)=8+20z
2. Expand −3(z+2):
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