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11×29 12×28 13×27~20×20 (1)平方差表示 (2)由(1)(2) 猜测一个一...
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Step 1: Enter the expression you want to evaluate. The Math Calculator will evaluate your problem down to a final solution. You can also add, subtraction, multiply, and divide and complete any arithmetic you need. Step 2: Click the blue arrow to submit and see your result!
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根据以下10个乘积，回答问题：11×29； 12×28； 13×27； 14×26； 15×25；16×24； 17×23； 18×22； 19×21； 20×20．（1）试将以上各乘积分别写成一个" 2- 2"（两数平方差）的形式，并写出其中一个的思考过程；（2）将以上10个乘积按照从小到大的顺序排列起来；（3 ...
Online math solver with free step by step solutions to algebra, calculus, and other math problems. Get help on the web or with our math app.
Take the fraction 1 2 for example. To convert this fraction into a decimal, first convert it into the fraction of 5 10. Knowing that the first decimal place represents 10-1, 5 10 can be converted to 0.5. If the fraction were instead 5 100, the decimal would then be 0.05, and so on. Beyond this, converting fractions into decimals requires the ...
Our comprehensive algebra calculator can handle a wide range of problems including basic algebra, algebra 2, linear algebra, boolean algebra, and algebraic expressions. It supports everything from simple equations to complex calculations like quadratic formulas, algebraic fractions, and binary algebra, all with detailed step-by-step solutions.
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Step 1: Enter the expression you want to simplify into the editor. The simplification calculator allows you to take a simple or complex expression and simplify and reduce the expression to it's simplest form. The calculator works for both numbers and expressions containing variables. Step 2: Click the blue arrow to submit and see the result!
解得， =20， =9．故11×29=202-92 （或11×29=（20-9）（20+9）=202-92． 下面自己想。 2.11×29＜12×28＜13×27＜14×26＜15×25＜16×24＜17×23＜18×22＜19×21＜20×20 3.）①若a+b=40，a、b是自然数，则ab≤202=400．（8分） ...
Use an online math calculator to calculate Factors, Fractions, Math, Scientific Notation, Mixed Numbers, Percentages, Prime Factors, Simplifying Fractions and Help working with fractions. Free online calculators for math, algebra, chemistry, finance, plane geometry and solid geometry. Free online converters. Free algebra and math word problems.